Kieran Carter joined Frost Law in 2026 as Of Counsel, bringing a wealth of knowledge in federal tax controversy, tax strategy, and estate/fiduciary litigation. Kieran spent the past 10 years of her legal career litigating high-stakes tax cases as a senior Trial Attorney in the U.S. Department of Justice’s Tax Division. There, she led litigation teams in some of the most complex tax cases in the country, involving multi-million-dollar disputes, complicated trust structures, FBAR and FATCA compliance, and closely-held assets. Today, she leverages her insider knowledge of the IRS and DOJ to maximize her clients' outcomes.
Kieran also served in DOJ leadership as Counsel to the Deputy Assistant Attorney General for Policy and Planning at the Tax Division, advising on tax cases before the Supreme Court and handling sensitive matters involving the IRS, Congress, and the White House. Prior to DOJ, she was a criminal prosecutor for five years for the Commonwealth’s Attorney’s Office in Fairfax County, VA, where she tried over 400 bench trials and 24 jury trials.
In 2025, Kieran started Oakgrove Legal Strategies, where she helps clients navigate sophisticated tax strategies, trust administration, and estate transitions. At Frost Law, Kieran helps clients navigate tax controversies, as well as providing sophisticated federal tax planning services. She offers tax advice not in isolation, but as part of a broader, integrated wealth management strategy that considers estate planning and potential litigation risks. Kieran is deeply committed to her clients and is known as someone who empathetically listens to her clients' needs. She is based in Arlington, Virginia, and enjoys hiking with her family and two labrador retrievers.
Glen Frost and his attorneys are professional and extremely knowledgeable. From the beginning I felt like I was a top priority. If I need legal assistance in the future I will definitely be contacting Frost & Associates again.
Working with this firm has been a great experience. Their experts are sharp, approachable, and always focused on doing what’s best for the client. I wouldn’t hesitate to recommend them to any CPA or advisor.
Very communicative and no use of "legaleze" to describe tax situations/complexities!
"Great folks. Mr. Frost and Associates are professional and very knowledgeable. They helped my wife and I out with some outstanding IRS issues with a close family member."
Glen Frost and his staff are excellent! Not only do they know the law, they provide great client service. They called me back right away, they explained complicated matters in a very clear way and gave me all of my options. I highly recommend them to any individual or business owner for tax disputes. Five Stars!
I’ve been So happy to working with them. I like their accuracy and prompt attention and kindness . They have been so much helpful. I am so much appreciate to find them.
As a retired IRS Examination Revenue Agent, Group Manager and Field Branch manager I had very little coordination with the IRS Collection function. The presentation by the Frost Law Group was very enlightening and provided me with a background to identify pertinent issues and a potential resource for future client assistance. Thank you for a job well done in the presentation which was provided on the CPA Academy website. The time was well spent.
Super kind and super helpful, they were patient with me all throughout knowing I was struggling to get by and never judged me for my past. Thank you frost law!!
The difference between winning and losing often comes down to what you noticed that others missed. I don't overlook anything.
Legal jargon clouds judgment. I explain your situation plainly so you can make decisions with full knowledge of what's at stake.
Practical guidance on matters that affect your case
Kieran Carter joined Frost Law in 2026 as Of Counsel, bringing a wealth of knowledge in federal tax controversy, tax strategy, and estate/fiduciary litigation. Kieran spent the past 10 years of her legal career litigating high-stakes tax cases as a senior Trial Attorney in the U.S. Department of Justice’s Tax Division. There, she led litigation teams in some of the most complex tax cases in the country, involving multi-million-dollar disputes, complicated trust structures, FBAR and FATCA compliance, and closely-held assets. Today, she leverages her insider knowledge of the IRS and DOJ to maximize her clients' outcomes.
Kieran also served in DOJ leadership as Counsel to the Deputy Assistant Attorney General for Policy and Planning at the Tax Division, advising on tax cases before the Supreme Court and handling sensitive matters involving the IRS, Congress, and the White House. Prior to DOJ, she was a criminal prosecutor for five years for the Commonwealth’s Attorney’s Office in Fairfax County, VA, where she tried over 400 bench trials and 24 jury trials.
In 2025, Kieran started Oakgrove Legal Strategies, where she helps clients navigate sophisticated tax strategies, trust administration, and estate transitions. At Frost Law, Kieran helps clients navigate tax controversies, as well as providing sophisticated federal tax planning services. She offers tax advice not in isolation, but as part of a broader, integrated wealth management strategy that considers estate planning and potential litigation risks. Kieran is deeply committed to her clients and is known as someone who empathetically listens to her clients' needs. She is based in Arlington, Virginia, and enjoys hiking with her family and two labrador retrievers.
