Atty. R. Mark Williamson
Mark Williamson is a partner and chair of Alston & Bird's Wealth Planning and Exempt Organizations Group. He is a Fellow of the American College of Trust and Estate Counsel and practices in the areas of estate planning and federal taxation.
Tax Law & More Attorney · Serving Atlanta, GA
Profile Summary
About R. Mark Williamson at a Glance
R. Mark Williamson is a trusts and tax attorney based in Atlanta, Georgia, practicing at Alston & Bird LLP. Admitted to practice in Georgia, State Bar of Georgia and Wisconsin, State Bar of Wisconsin. Educated at Florida State University (J.D., 1991) and University of North Texas (—, 1983). Recognitions include Lawyer of the Year — Tax Law (Atlanta) (2026), Best Lawyers in America — Tax Law (2026), and Best Lawyers in America — Trusts and Estates (2026). Serves clients in Atlanta, GA and the surrounding metropolitan area.
Get Legal Help from R. Mark Williamson in Atlanta
Sign up free and choose one of the two methods below.
Have a legal question? Sign up free, submit it through the Ask the Attorney module and receive a focused answer from a specialist.
- Free to ask a question
- Answers from specialist attorneys
- Optional private / anonymous question
Request an online video meeting or an in-person consultation at the attorney's office. Pick a time that works for you and share the details securely.
- Online video meeting
- In-person at the attorney's office
- Secure messaging and payment
About R. Mark Williamson
- Mark Williamson is a partner and chair of Alston & Bird's Wealth Planning and Exempt Organizations Group
- He is a Fellow of the American College of Trust and Estate Counsel and practices in the areas of estate planning and federal taxation
- Mr. Williamson practiced with the Milwaukee law firm of Foley & Lardner before joining Alston & Bird and has been an adjunct professor of law at the University of Wisconsin in Madison and Georgia State University in Atlanta
- He was on the faculties of the 1997, 1999, 2007, and 2011 Estate Planning Institutes in Athens, Georgia, and the 1997, 2000, 2007, and 2008 Fiduciary Law Institutes in St. Simons, Georgia
- In 1997, Mr. Williamson received the Estates and Trusts Magazine "Best Young Author Award" for a series of articles he co-authored with Professor Jeffrey Pennell of Emory University, and is the author of a BNA Tax Management Portfolio on tax treaties for individuals
- He is listed in The Best Lawyers in America and is a Georgia "Super Lawyer
- Mr. Williamson also studied at the doctorate level at Louisiana State University and the Catholic University of America, and continues to perform professionally including a three-week tour of China in 2011-12
Practice Areas Explained
R. Mark Williamson's Areas of Legal Practice
Each practice area below reflects the types of cases R. Mark Williamson handles, with a practical overview of what that area of law involves and how it may apply to your situation in Atlanta.
Trusts in Atlanta
R. Mark Williamson is one of 103,428 trusts attorneys indexed nationally. Browse trusts attorneys in Georgia →
Tax Law in Atlanta
Tax attorneys handle IRS audits, tax debt, international tax, estate planning, and tax court litigation.
R. Mark Williamson is one of 84,606 tax attorneys indexed nationally. Browse tax attorneys in Georgia →
Jurisdictional Context
Why Local Counsel Matters in Atlanta
Practicing law in Georgia. Legal matters in Georgia are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Atlanta are typically filed in the local municipal court or the appropriate Georgia state district court, depending on subject matter and amount in controversy. An attorney licensed in Georgia brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Georgia courts without local counsel or pro hac vice admission.
Atlanta Courts and Legal Process
Choosing a Atlanta-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.
Looking for additional Georgia attorneys? Browse all attorneys in Atlanta or all attorneys in Georgia.
Frequently Asked
Common Questions About R. Mark Williamson
Where is R. Mark Williamson's law office located?
What practice areas does R. Mark Williamson handle?
Where did R. Mark Williamson go to law school?
How can I contact R. Mark Williamson for a consultation?
What awards or recognition has R. Mark Williamson received?
Professional Profile
Why Clients in Atlanta Choose R. Mark Williamson
Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish R. Mark Williamson's practice in the field of trusts and tax.
Multi-State Bar Admission
Licensed in Georgia, State Bar of Georgia and Wisconsin, State Bar of Wisconsin, R. Mark Williamson can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering trusts and tax, R. Mark Williamson can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in Atlanta
A Atlanta-based practice means R. Mark Williamson attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
Case Types
Common Legal Issues R. Mark Williamson Handles in Atlanta
Below is a representative sample of the types of matters R. Mark Williamson has experience with under Georgia law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.
This list is illustrative, not exhaustive. Contact R. Mark Williamson directly to discuss the specifics of your situation.
Search Reference
How People Find R. Mark Williamson Online
Prospective clients searching for legal help in Atlanta commonly use a combination of the attorney's name and their specific legal need. The following search terms frequently lead people to this profile and to attorneys like R. Mark Williamson.
If any of the above matches what you searched for, you've found the right profile. Use the contact options at the top of this page to get in touch with R. Mark Williamson directly.
R. Mark Williamson's Practice Areas & Specializations
Education & Law School Background
Awards & Professional Honors
Bar Admissions & Licensed Jurisdictions
Client Reviews & Ratings — R. Mark Williamson
No reviews yet.