International Sanctions Lawyers & Delisting Defense

A sanctions designation is not a permanent verdict — it is a reversible legal status. Unlike a criminal conviction, a sanctions listing requires no trial, no jury, and no proof beyond reasonable doubt. It is a political instrument, issued by executive decision, and subject to challenge through defined legal processes that our sanctions lawyers navigate daily. For individuals and businesses caught in the crossfire of geopolitical conflict, understanding this distinction is the foundation of every effective defense strategy.

In 2026, the global sanctions landscape is more fragmented and more dangerous than at any point in recent history. OFAC, the EU Council, UK OFSI, and the UN Security Council each operate distinct legal regimes — with different evidentiary standards, different challenge routes, and different timelines. A designation by one body rarely exists in isolation: cross-jurisdictional exposure is now the norm. Our international sanctions lawyers operate across all four regimes simultaneously, coordinating defense strategies that address the full scope of a client’s exposure.

The Collegium of International Lawyers has handled over 100 sanctions cases across more than 40 countries, representing HNWIs, politically exposed persons (PEPs), multinational corporations, and state-adjacent entities. We provide legal advice on international sanctions that goes beyond generic compliance — we deliver forensic analysis, strategic positioning, and courtroom-ready advocacy. If you or your business is facing a sanctions designation, frozen assets, or secondary sanctions risk, this page outlines exactly how our sanctions law firm can help.

What Does It Mean to Be Sanctioned?

Understanding the sanction meaning in law is essential before mounting any defense. In legal terms, sanctions are coercive measures imposed by a government or international body — not by a court — to compel a change in behavior or penalize conduct deemed contrary to foreign policy or security objectives. Unlike criminal proceedings, sanctions designations do not require due process in the traditional sense: there is no right to be heard before designation, no presumption of innocence, and no jury of peers. The designation is made on the basis of classified or intelligence-derived evidence that the designated person may never see in full. This asymmetry is precisely what makes experienced economic sanctions lawyers indispensable.

Sanctions take several forms, each with distinct legal and commercial consequences. An asset freeze locks all property and funds owned or controlled by the designated person, making it impossible to access frozen bank accounts, sell property, or conduct business. A travel ban prohibits entry into the territory of the sanctioning jurisdiction. Sectoral sanctions restrict entire categories of transactions — such as debt financing or technology exports — without necessarily targeting a named individual. A correspondent banking cutoff is perhaps the most commercially devastating: once a person or entity appears on OFAC’s SDN list, global banks will terminate relationships to avoid secondary sanctions exposure, effectively severing the client from the dollar-denominated financial system.

When governments “impose sanctions,” the meaning in law is that a sovereign decision has been made — often by a Treasury department, a foreign ministry, or an international body — to classify a person or entity as a threat to national security, foreign policy, or the implementation of agreed international norms. This is not a court judgment; it is an administrative act. But it carries legal force, and it triggers cascading obligations on banks, counterparties, and service providers worldwide. Economic sanctions lawyers understand that challenging this status requires engaging with both administrative law and international law simultaneously — and that the window for effective intervention often opens and closes quickly.

Who Are Sanctions Lawyers and What Do They Do?

A sanctions lawyer — also referred to as a sanctions attorney or sanctions solicitor — is a specialist in the intersection of public international law, administrative law, and financial regulation. The practice covers two fundamentally different client needs: compliance (ensuring a business does not inadvertently violate sanctions) and defense (challenging a designation, seeking delisting, or applying for licenses to unblock frozen assets). Our firm focuses primarily on defense — representing clients who have already been designated, are at risk of designation, or whose assets have been frozen as a result of another party’s sanctions exposure.

The scope of sanctions defense work is broad. It includes filing delisting petitions with OFAC, the EU Council, and OFSI; preparing license applications to authorize specific transactions involving frozen assets; advising on compliance frameworks to mitigate secondary sanctions risk; and conducting sanctions litigation before the US District Court, the EU General Court (CJEU), and the UK High Court. An international sanctions lawyer must be fluent in the procedural rules and evidentiary standards of each jurisdiction — because the same factual situation will be assessed differently by OFAC, by the EU Council, and by OFSI, and each requires a tailored legal argument.

There is an important distinction between a sanctions law firm that focuses on transactional compliance — advising banks and corporations on how to screen counterparties and structure deals to avoid violations — and a firm like ours that provides sanctions defense counsel. Defense work requires forensic analysis of the designation decision, identification of procedural or evidentiary flaws, and strategic advocacy before the designating authority or the courts. Our sanctions law center combines both capabilities: we advise on compliance architecture before a problem arises, and we litigate aggressively when a designation has already been made. The distinction matters because most law firms that offer “sanctions advice” are not equipped to challenge designations — they are structured for compliance, not combat.

The Three Pillars — OFAC, EU, and UK Sanctions Defense

Our defense work spans three major legal regimes — US (OFAC), European Union, and UK (OFSI) — each with distinct challenge mechanisms, procedural timelines, and evidentiary standards. The sections below outline our approach within each framework and how we coordinate cross-jurisdictional strategy when a client faces simultaneous designations.

OFAC (US) — SDN List Removal & Administrative Petition

The US Treasury’s Office of Foreign Assets Control maintains the Specially Designated Nationals and Blocked Persons (SDN) list — the most globally consequential sanctions list in existence. Because the US dollar underpins international trade and SWIFT correspondents are US-regulated, an SDN designation effectively severs a person or entity from the global financial system, regardless of their nationality or location. This extraterritorial reach is what makes OFAC designations uniquely devastating and uniquely complex to challenge. Our OFAC sanctions lawyers have deep expertise in navigating the administrative and judicial challenge process.

Challenging OFAC SDN listing for non-US persons is not only possible — it is a well-established legal pathway. Non-US nationals have standing to file an administrative petition with OFAC, seeking reconsideration of the designation on grounds of factual error, procedural deficiency, or changed circumstances. If OFAC denies the petition, the designated person can escalate to the US District Court for the District of Columbia, where courts have increasingly applied meaningful judicial review to OFAC decisions. In Global Magnitsky cases — designations for alleged human rights violations or corruption — the petition must demonstrate either that the factual predicate for the designation is unsupported by the evidence, or that the designation process itself was procedurally deficient. Our lawyers prepare detailed evidentiary submissions, including expert declarations, financial forensics, and corporate governance documentation, to rebut the intelligence basis of the designation.

A critical procedural tool for designated persons initiating their defense is OFAC General License 13 (and its successors). General License 13 for legal fees authorizes blocked persons to use otherwise-frozen funds to pay for legal representation specifically in connection with their OFAC sanctions challenge. This provision exists precisely because the right to legal counsel — even in administrative proceedings — is a fundamental principle. Without GL-13, many designated individuals would be unable to fund their own defense, since their assets are frozen by the very designation they seek to challenge. Our sanctions law firm routinely invokes GL-13 at the outset of every OFAC engagement, ensuring that our representation is properly authorized and that the client’s legal fees are lawfully sourced.

European Union — CJEU Action for Annulment

EU sanctions are adopted by the Council of the European Union through Council Regulations and Council Decisions — legal acts that have direct effect across all 27 member states. Designations under EU sanctions programs (including those targeting Russia, Belarus, Iran, and Syria) result in an asset freeze and travel ban throughout EU territory, with cascading effects on any EU-regulated bank, fund, or service provider worldwide. The EU sanctions lawyer challenge route is an Action for Annulment before the General Court of the European Union in Luxembourg, which forms part of the Court of Justice of the European Union (CJEU). This is a formal judicial proceeding with strict standing requirements, procedural timelines, and an evidentiary standard that our lawyers are fully equipped to navigate.

The cornerstone legal argument in EU sanctions litigation is the “manifest error of assessment” standard. This means demonstrating that the Council of the EU made a clear and obvious error in concluding that the designated person meets the listing criteria. In practice, this requires deconstructing the Council’s statement of reasons — the public document that sets out the factual basis for the designation — and showing that the evidence cited is insufficient, outdated, or incorrect. EU sanctions court of justice precedents in 2024–2025 have significantly strengthened the position of designated persons: the General Court has issued multiple rulings requiring the Council to provide individualized, specific, and regularly updated evidence for each listing, rather than relying on guilt by association or generic statements about the designated person’s role. These precedents are not academic — our lawyers apply them in every active case.

A specific and increasingly common issue for clients designated under EU sanctions programs is the question of how to unblock funds frozen in Euroclear in 2026. Euroclear, the Brussels-based central securities depository, holds trillions of euros in securities — including frozen Russian sovereign assets and securities held by private individuals who have been designated. When a client’s bonds, equities, or other securities are held at Euroclear and are subject to an EU asset freeze, releasing those assets requires obtaining a specific license from the competent EU national authority (or, where OFAC is also involved, from OFAC as well). Our sanctions lawyers prepare and file these license applications, coordinate with Euroclear’s internal compliance team, and manage the multi-jurisdictional authorization process required to execute a licensed release. The procedure is technically complex but achievable — we have successfully completed Euroclear asset releases for multiple clients.

UK (OFSI) — Post-Brexit Administrative Review

Since Brexit, the United Kingdom operates its own autonomous sanctions regime, administered by the Office of Financial Sanctions Implementation (OFSI) under HM Treasury. The legislative framework is the Sanctions and Anti-Money Laundering Act 2018 (SAMLA) — the statute that gave the UK the power to maintain and expand its own sanctions lists independently of the EU after departure from the bloc. UK sanctions now include the UK Global Anti-Corruption Sanctions, the UK Global Human Rights Sanctions Regime (equivalent to Magnitsky), and a range of country-specific programs. SAMLA provides the legal basis for both the asset freeze and travel ban measures, and it also establishes the formal review and licensing framework that our sanctions solicitors use to challenge designations.

The primary challenge route under SAMLA is a Ministerial review — a formal request to the Secretary of State to reconsider a designation. The grounds for challenge include factual error (the evidentiary basis for the designation is incorrect), human rights concerns (the designation is disproportionate or violates fundamental rights), and proportionality (the measures imposed are excessive relative to the stated objective). If the Ministerial review is denied, the designated person can seek judicial review before the UK High Court, and in cases involving classified intelligence, before the Special Immigration Appeals Commission (SIAC) or equivalent tribunal. The UK framework is generally faster than OFAC or CJEU processes, with Ministerial reviews typically completing within 3–12 months.

OFSI also administers a licensing regime under SAMLA, allowing designated persons to apply for authorizations to undertake specific transactions that would otherwise be prohibited. There are two categories: general licenses, which apply broadly to defined categories of activity (such as legal fees, essential living expenses, or humanitarian purposes), and specific licenses, which are granted on a case-by-case basis for particular transactions. Our sanctions solicitors regularly prepare specific license applications for clients needing to access frozen funds for medical expenses, family maintenance, or business continuity purposes. These applications require a detailed factual narrative, legal argument, and supporting documentation — and they are assessed by OFSI against a public interest standard that our lawyers understand in depth.

Advanced Technical Concepts

Effective sanctions defense requires mastering several technical legal doctrines that define the full scope of a client’s exposure — often extending well beyond the named designation itself. Understanding these concepts is essential for accurate risk assessment, challenge structuring, and pre-emptive remediation advice.

The 50% Rule and Subsidiary Exposure

One of the most misunderstood aspects of OFAC sanctions is the 50% rule: any entity that is 50% or more owned — directly or indirectly — by a designated person or entity is automatically treated as sanctioned, even if it does not appear on the SDN list by name. This means that a company wholly owned by a designated individual is itself blocked, and any transaction involving that company triggers the same legal consequences as a transaction with the named SDN. The rule applies on an aggregate basis: if two designated persons each own 30% of a company, the combined 60% ownership makes that company automatically sanctioned. EU and UK sanctions apply analogous ownership aggregation rules, creating a web of automatic exposure that extends far beyond the formally named designees.

Our sanctions law firm advises clients on how to “ring-fence” clean subsidiaries — entities that are commercially and operationally valuable but potentially exposed through ownership links to designated persons. This may involve corporate restructuring to break ownership chains, divestment of interests held by designated persons, or the establishment of compliance firewalls that demonstrate operational independence. Where a client faces designations in multiple jurisdictions simultaneously, a coordinated cross-jurisdictional strategy is essential: measures taken to address OFAC exposure may need to be mirrored under EU and UK rules to be effective, and inconsistencies between jurisdictional positions can themselves create legal risk.

Secondary Sanctions and Third-Party Risk

Secondary sanctions are measures that penalize non-US (or non-EU, or non-UK) persons and entities for conducting business with sanctioned parties — even when the transaction has no direct connection to the sanctioning jurisdiction. OFAC’s secondary sanctions programs, particularly those targeting Iran, Russia, and North Korea, can designate foreign banks, trading companies, and individuals simply for maintaining commercial relationships with SDN-listed entities. This creates a risk that “clean” entities — businesses with no direct sanctions exposure — can become contaminated by their correspondent banking relationships, trade finance arrangements, or supply chain connections to sanctioned parties. Our lawyers assess and mitigate this risk through defensive compliance frameworks designed before the designation happens.

The structure of a defensive compliance framework typically includes enhanced due diligence protocols, automated screening against all major sanctions lists, contractual representations and warranties regarding sanctions status, and documented escalation procedures for potential matches. For clients operating in high-risk jurisdictions or sectors — energy, financial services, technology — we design bespoke compliance architectures that are defensible before regulators if a secondary sanctions investigation is opened. The goal is to demonstrate that the client exercised reasonable care and took meaningful steps to avoid prohibited conduct, which can be the difference between a formal designation and an informal warning.

Control vs. Ownership — How Regulators Interpret “De Facto Control” in 2026

In 2026, OFAC and EU regulators have moved significantly beyond formal ownership structures in assessing sanctions exposure. The concept of de facto control — where a person exercises effective operational control over an entity without holding a majority ownership stake — is now central to designation analysis. Regulators look at board representation, signatory rights over bank accounts and corporate decisions, the ability to direct dividend payments, personal guarantees, and operational influence exercised through management roles or informal authority. Funding relationships — where a designated person provides capital or credit lines to an ostensibly independent entity — are also treated as indicators of control. The practical result is that entities with no formal ownership link to a designated person can nonetheless be treated as within their control.

Our sanctions law firm challenges overbroad “control” interpretations in both administrative petitions and court proceedings. The legal argument typically involves demonstrating that the entity exercises genuine commercial independence — that its management makes decisions autonomously, that its banking relationships are not directed by the designated person, and that its operations would continue unchanged regardless of the designated person’s involvement. This requires detailed corporate governance documentation, board meeting records, financial audits, and, in many cases, independent expert testimony on governance standards. Successfully rebutting a control-based designation requires the same forensic depth as challenging any other type of SDN listing — and our lawyers approach it with the same rigor.

The Delisting Roadmap — Step by Step

1. Forensic Audit — Identify the specific intelligence or evidentiary basis cited in the designation decision. Review the statement of reasons, public designating materials, and any related regulatory filings to establish the precise factual and legal theory underlying the listing.
2. Remediation — Advise on “change of behavior”: divestment from sanctioned entities, resignation from board positions of implicated companies, public distancing from designated individuals, and documented evidence of changed conduct. Remediation is often a prerequisite for a successful petition.
3. License Application — Apply for a General or Specific License to authorize essential living expenses, humanitarian needs, or legal fees (including GL-13 for OFAC). This ensures the client can fund their defense and meet basic needs during the potentially lengthy delisting process.
4. Petition Filing — Submit a formal reconsideration petition to the designating authority (OFAC, EU Council, OFSI) with comprehensive legal arguments, documentary evidence, financial forensics, and expert declarations rebutting the factual basis of the designation.
5. Court Challenge — If the administrative petition is denied, escalate to judicial review: CJEU General Court (EU), US District Court for DC (OFAC), or UK High Court / SIAC (OFSI). Court proceedings introduce full procedural protections and an independent judicial assessment of the designating authority’s decision.
6. Post-Delisting Compliance — Establish an ongoing compliance program to prevent re-listing. Document the behavioral changes made during the delisting process, maintain robust sanctions screening, and implement governance structures that demonstrate continued commitment to compliance.

Delisting timelines vary significantly by jurisdiction. OFAC administrative petitions typically take 6–24 months from filing to decision, with judicial challenges adding 12–24 months if escalated to the District Court. EU CJEU proceedings have a formal timeline of 12–36 months from application to judgment, though interim measures can provide partial relief more quickly. UK OFSI Ministerial reviews are the fastest route, typically resolving within 3–12 months, though judicial review adds further time if the Ministerial decision is contested. In all cases, the quality and completeness of the initial petition submission is the single most important factor in determining the speed and outcome of the process.

Because most clients face designations in multiple jurisdictions simultaneously — particularly following Russia-related sanctions actions, which typically involve coordinated OFAC, EU, and UK designations — a concurrent multi-jurisdictional strategy is not optional; it is essential. Many clients in this position also face concurrent extradition risk or require guidance on non-extradition countries as safe jurisdictions while proceedings are underway. A delisting achieved in one jurisdiction does not automatically produce relief in others, but it can create favorable precedent and evidentiary momentum that strengthens the parallel proceedings. Our international sanctions lawyers manage all three workstreams in parallel, ensuring that arguments, evidence, and procedural timelines are coordinated to maximize the probability of success across all jurisdictions at once.

Sanctions Risk Matrix

Anonymous Case Studies

OFAC SDN Challenge — Middle East Businessman: A UAE-based entrepreneur was designated on the SDN list as part of a sectoral Russia sanctions action, on the basis of alleged business relationships with SDN-listed entities in the energy sector. Our OFAC sanctions lawyers filed a detailed administrative petition demonstrating that the client had terminated all commercial relationships with the relevant entities more than 18 months prior to designation, and that the intelligence underlying the listing reflected outdated information. The petition included financial forensics, corporate restructuring documentation, and expert declarations on industry practice. OFAC removed the designation after 14 months.

CJEU Action — Eastern European Holding: A multinational holding company incorporated in an EU member state was designated by the EU Council as part of a coordinated Russia-related sanctions package. The company challenged the designation before the EU General Court, arguing “manifest error of assessment” — specifically, that the Council had relied on intelligence that predated a series of material corporate governance changes and had failed to provide any individualized evidence connecting the company’s current operations to the stated designation criteria. The General Court annulled the designation within 22 months, citing the Council’s failure to provide specific, individualized evidence for the listing — consistent with the evolving line of EU sanctions court of justice precedents from 2024–2025.

Euroclear Asset Release — Private Investor: A client held €4.2 million in frozen Euroclear securities — a portfolio of corporate bonds that had been immobilized as a result of an EU asset freeze following designation. The client was not the primary designee but was captured by the 50% ownership rule through a holding structure. Our lawyers successfully challenged the ownership attribution, obtained a specific OFSI license for a partial release, and coordinated with Euroclear’s compliance team and the relevant EU national competent authority to execute a licensed release of the frozen funds within 8 months.

Frequently Asked Questions

Below are answers to the most common questions we receive from individuals and businesses navigating sanctions designations, asset freezes, and delisting challenges across OFAC, EU, and UK regimes.

What does a sanctions lawyer do?

A sanctions lawyer (also called a sanctions attorney or sanctions solicitor) advises on compliance with OFAC, EU, UN, and UK sanctions regimes, and represents clients in delisting petitions, license applications, and litigation. In defense cases, they challenge the legal and factual basis of a designation and work to restore access to frozen assets. The most effective sanctions lawyers combine deep knowledge of administrative law and international law with practical experience of the specific evidentiary standards applied by each sanctioning authority.

What is the meaning of “sanctions” in law?

In international law, sanctions are coercive measures imposed by a government or international body — without a criminal trial — to achieve foreign policy or security objectives. They may include asset freezes, travel bans, trade restrictions, or correspondent banking cutoffs. Understanding the sanction meaning in law is crucial: unlike criminal convictions, sanctions designations can be challenged through administrative and judicial processes, and the evidentiary standard applied by courts is often more favorable to the designated person than the standard used by the designating authority itself.

Can a non-US person challenge an OFAC SDN listing?

Yes. Non-US nationals designated on the OFAC SDN list can file an administrative petition with OFAC through their sanctions lawyers, and if denied, can escalate to the US District Court for the District of Columbia. Challenging an OFAC SDN listing for a non-US person requires demonstrating that the designation is factually unsupported, procedurally deficient, or disproportionate. Our OFAC sanctions lawyers have successfully represented non-US clients in both the administrative and judicial phases of this process.

What is General License 13 and how does it help?

OFAC General License 13 (and similar GL provisions for specific sanctions programs) authorizes blocked persons to use otherwise-frozen funds specifically to pay for legal representation in connection with their sanctions challenge. This provision exists because without it, designated individuals would be unable to fund their own defense — their assets are frozen by the very designation they seek to challenge. General License 13 for legal fees is one of the first tools our sanctions law firm invokes in every new OFAC engagement, ensuring that our representation is properly authorized and that the client’s legal fees are lawfully sourced from blocked accounts.

How to unblock funds frozen in Euroclear in 2026?

Euroclear, as a central securities depository subject to EU and OFAC sanctions regulations, is required to freeze assets of designated persons. To release these assets, the holder must obtain a specific license from the relevant sanctions authority (OFAC, EU national competent authority, or OFSI) demonstrating a lawful purpose for the transaction. Unblocking funds frozen in Euroclear in 2026 also requires coordination with Euroclear’s internal compliance team, which has its own authorization procedures separate from the regulatory license. Our sanctions lawyers prepare and file these license applications and manage the full coordination process from regulatory approval through to settlement execution.

What are the latest EU sanctions court of justice precedents?

In 2024–2025, the EU General Court issued several significant rulings requiring the Council to provide individualized, specific, and updated evidence for each designation — rather than relying on association with third-country persons or entities. These EU sanctions court of justice precedents strengthen the “manifest error of assessment” argument and have resulted in a number of annulments of EU designations, particularly in Russia-related sanctions cases where the Council relied on outdated or generalized evidence. Our international sanctions lawyers track and apply these precedents in all active EU sanctions cases, building petition and litigation strategies around the evolving evidentiary standards established by the court.

Confidentiality & Attorney-Client Privilege

All communications with our sanctions lawyers are protected by strict attorney-client privilege from the moment of initial contact. We do not disclose client identities, case details, legal strategies, or the existence of a representation to any third party — including regulators, counterparties, or media — without explicit written authorization. Initial consultations are conducted under full privilege and are completely confidential. Our lawyers are bound by the professional conduct rules of their respective bar associations and law societies, and we maintain robust internal protocols to ensure that privilege is never inadvertently waived.

For high-profile clients, politically exposed persons (PEPs), individuals with an Interpol Red Notice, and those facing parallel criminal or regulatory investigations, we offer enhanced communication security protocols, including encrypted messaging, secure document transfer, and compartmentalized case management. We understand that for many of our clients, the existence of a sanctions designation — and the fact that they are challenging it — is itself highly sensitive information. Our approach to client confidentiality reflects that reality. The Collegium of International Lawyers has built its practice on discretion as much as technical excellence.

Request a Confidential Sanctions Risk Audit

If you or your business faces sanctions exposure — active designation, secondary sanctions risk, or frozen assets — request a confidential Sanctions Risk Audit. Our international sanctions lawyers will assess your full jurisdictional exposure, identify available delisting pathways, evaluate license options for frozen assets, and develop a coordinated multi-jurisdictional defense strategy — delivered within 48 hours of your initial contact. Whether you are facing OFAC, EU, UK, or UN sanctions, our sanctions law firm has the expertise, the track record, and the global network to act immediately.

Iryna Berenstein

Associate Partner

Mrs. Berenstein is a distinguished and outstanding lawyer with profound experience and exceptional legal knowledge in the field of International Private Law, Financial Law, Corporate Law, investment regulation, Compliance, Data Protection, and Reputation Management.

Phone:

+35796447475

Email:

[email protected]

Book a call