Ada K. Colomb

Ada K. Colomb is a Partner in Rimôn’s Trusts and Estates Group. Ada advises individuals and families on cross-border estate planning, multi-jurisdictional probate and trust administration, and U.S. tax compliance for both U.S. persons abroad and foreign nationals with U.S. ties. Her clients include U.S. citizens considering expatriation, foreign nationals relocating to or investing in the United States, and international families navigating estates and inheritances involving the United States and at least one other country. 

Ms. Colomb’s practice spans the full lifecycle of international estate planning and administration. She drafts estate plans ranging from foundational documents to sophisticated trust structures, and trusts designed to qualify as domestic trusts under the IRS rules despite foreign elements. She guides families through domestic and multi-jurisdictional probate and trust administrations, advises non-U.S. beneficiaries on inheriting U.S. accounts and other assets, and counsels trustees on U.S. tax compliance and reporting obligations. 

On the tax and compliance side, Ms. Colomb prepares federal and state estate (Form 706 and 706-NA) and gift tax returns, advises on expatriation and related tax consequences, including gifts and bequests from covered expatriates to U.S. citizens or trusts, and handles inbound planning for foreign nationals establishing U.S. residency or investments. She regularly handles IRS filings for foreign gifts, inheritances, and transfer certificates, often relying on tax treaties. 

Ms. Colomb speaks and publishes regularly before professional audiences of attorneys, accountants, and wealth advisors. She is fluent in four languages and trained in both common law and civil code systems, enabling her to communicate directly with clients and counterparts without relying on intermediaries.