Protect What You’ve Built.
Plan for What Comes Next.
Thienel Law, PLLC is a business, tax, and estate law firm serving Maryland, D.C., and Virginia. For more than 26 years, attorney Steve Thienel has helped business owners and families protect their interests, plan proactively for taxes, and provide for the people who matter most.
The people who build businesses and provide for their families need more than a lawyer who appears when something goes wrong.
They need a trusted advisor who sees the whole picture across business, tax, and estate matters — and who is licensed to guide them through all three DMV jurisdictions.
That is the role Thienel Law has played for clients in Maryland, D.C., and Virginia for more than two decades.
Business, tax, and estate counsel — brought together
Business owners and families often face overlapping legal questions. Thienel Law brings these disciplines together, so your strategy stays consistent across every area of your life and your company.
Fractional General Counsel
Ongoing counsel for growing companies — a senior lawyer who knows your business and is there for the decisions that matter.
Learn moreBusiness Law
Formation, contracts, and transactions handled by a lawyer who thinks like an owner, not just a litigator.
Learn moreTax
Strategic planning and compliance that keep you ahead of federal and DMV tax obligations — handled in-house.
Learn moreEstate Planning
Wills, trusts, and powers of attorney that protect your family and your legacy for the long term.
Learn moreEstate Administration
Steady guidance for executors and trustees through probate and trust administration, start to finish.
Learn moreElder Law
Planning for aging, long-term care, and the protection of seniors and their families with dignity.
Learn moreWhat sets the firm apart
Few firms in the region can offer this combination of breadth, seniority, and reach.
Counsel under one roof
Your business, tax, and estate questions rarely stay in separate boxes. Thienel Law handles all three, so your decisions stay consistent and nothing falls through the cracks.
Senior experience on every matter
You work directly with Steve Thienel — an attorney with 26+ years of practice and an advanced law degree in taxation — not a rotating cast of junior associates.
True DMV coverage
Licensed in Maryland, D.C., and Virginia, Thienel Law serves clients whose lives and businesses cross all three jurisdictions — something few regional firms can offer.
A practice that respects your time
Secure document sharing, electronic signatures, and online scheduling keep matters moving without unnecessary meetings or paperwork.
Trusted by owners and families across the DMV
I have worked with Steve Thienel for more than 20 years now and the experience has been amazing. Steve and his team are very thorough, they review all sides of a situation, and are very measured in how they approach a solution. They are 100% client focused and a pleasure to work with!
Throughout years, Steve has been my go to guy for business, real estate, and legal work. Steve works fast and is highly reliable. I would recommend Steve to anyone.
Received expert advice including options when applicable. Filings were timely and I was kept informed each step of the way. First class service!!!
I have been receiving services from Mr. Thienel for over 15 years. I have found his legal services to be of exceptionally high value and quality. His services are always timely, professional and thorough!
Reviews are published as given. Thienel Law does not offer compensation for reviews.
A strategic partner — not just a lawyer
Thienel Law is led by Steve Thienel, a business, tax, and estate attorney licensed in Maryland, D.C., and Virginia. A native of Alexandria, Steve brings more than 26 years of experience and an uncommon depth of training.
Before practicing law, Steve hired and managed attorneys from the client side of the table, so he understands what clients actually want from their counsel. He works as a strategic partner — helping clients seize opportunities, solve problems, and protect what they have built.
Practical guidance for the DMV
Thienel Law publishes practical guidance on business, tax, and estate planning. Start with these guides, or read the latest from the blog.
Estate Planning: Your Top 50 Questions Answered
The most common estate-planning questions answered in plain English — a free resource for DMV families.
Download free guide Tax The Ultimate Guide to Surviving a Federal Tax Audit Thienel Law Tax · eBookThe Ultimate Guide to Surviving a Federal Tax Audit
What to expect and how to protect yourself if the IRS comes calling — from a tax attorney with an LL.M.
Download free guide Business Law Start-Ups: Maximize Business Success & Minimize Risk Thienel Law Business Law · eBookStart-Ups: Maximize Business Success & Minimize Risk
Everything founders need to know to launch on solid legal footing and avoid the costly early mistakes.
Download free guideSchedule a free 30-minute consultation
Every business and family is different. Steve Thienel will review where you stand and the options available to you across Maryland, D.C., and Virginia.
- Tell Steve about your matter
- Pick a time that works