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The American Society of Tax Problem Solvers (ASTPS) is a community of over 1,600 professionals from across the United States that specialize in representing taxpayers before the IRS and other taxing authorities. Membership in ASTPS reflects commitment to excellence and high standards in taxpayer representation.

Brief History of ASTPS

The American Society of Tax Problem Solvers is a national non-profit membership association that was founded in 2003 to address the need for IRS Tax Problem Resolution Training and Mentoring.

ASTPS offers live technical training conferences, case support & continuing education through membership, and certification opportunities for practitioners looking to specialize in tax problem resolution. Click the links below to explore the opportunities that ASTPS offers.

Taxpayer Representation Super Conference

“ASTPS feels like a family!”

Ricardo R.Enrolled Agent

“It's such a great feeling to be able to assist clients with resolving their tax problems. I enjoy this kind of work and value the classes and support I receive from ASTPS.”

Linda D.CPA

“Knowing that ASTPS is always there to assist me is the best tool in my Tool Box!”

Nick F.CPA

It’s all about the people!

The reality is you can take all the classes in the world, but when it comes time to do your first case, you’re still going to have questions. That’s when you’ll often find the person who sold you an expensive course doesn’t have a phone number, or wants to charge you even more to help you out.

Believe it or not ASTPS has a phone number, and when you dial it we pick up! We offer 1-on-1 phone case consultations with just about every course we offer. Bottom line we’re here when you need us.

The biggest difference you’ll find with our organization vs others is that we just plain care. We get to know our members over time and we always strive to go above and beyond to help when they need us. We feel invested in our member’s success and we love celebrating their big victories with them!

Bottom line you’ll be hard pressed to find a more caring group of people and we hope you’ll give us a chance to show you what tax resolution is all about!

Member Breakdown

Enrolled Agents






Lawrence M. Lawler, CPA, EA, CTRS

ASTPS National Director & Founding Member
Larry has worked and consulted on literally thousands of IRS tax resolution cases in his career. He is a frequent public speaker, a writer on professional topics, and a regular trainer of tax professionals nationwide. He has been a NY CPA since 1973 and is the managing partner of Lawler & Witkowski, CPAs, PC, the firm he established in 1973.

John J. Witkowski, CPA, CTRS

ASTPS Secretary/Treasurer & Founding Member
A graduate of Canisius College, John is a CPA, Certified Tax Resolution Specialist, and A founding member of the American Society of Tax Problem Solvers (ASTPS). He is the CEO of Lawler & Witkowski, CPAs, PC, the firm he joined in 1978., and has worked and consulted on thousands of IRS tax resolution cases in his career.

LG Brooks, EA, CTRS

ASTPS Director of Education
LG has been in the field of taxation for more than 29 years and has been in practice full time since 1990. He has been one of the nations top tax resolution instructors for over a decade. LG currently manages the Dallas Office of Lawler & Witkowski CPAs. LG received a Bachelor of Arts degree from Bishop College at Dallas, Texas in 1977.

Steve Klitzner, Esq., CTRS

ASTPS Senior Tax Resolution Instructor
Steve is the CEO of Florida Tax Solvers in Miami, FL and is 1 of 3 instructors of the ASTPS Boot Camp. He is admitted to the US Supreme Court, US Tax Court, US Court of Appeals for the Fifth Circuit, and the US District Court for the Southern District of Florida. Steve is a frequent lecturer on Tax Resolution topics and has presented to thousands of practitioners around the country.

Mitchell Piper

ASTPS Director of Marketing
Mitch has been with ASTPS since 2014 and has worked to grow our organization from 500 to over 1,300 members in his time. He runs all of our online events and in-person conferences. Additionally, Mitch is the Director of Marketing for Lawler & Witkowski, CPAs and has 7 years of experience is marketing tax resolution services. Using this experience he teaches the ASTPS Quarterly Marketing Update as well as consults on marketing strategies for members.

Carolyn Ryer

ASTPS Director of Events
Carolyn has been with ASTPS since 2017 and runs both our membership and mastermind program. She works every year to help plan our events, conferences, and meetings. You’ll likely meet Carolyn on your introductory ASTPS Member phone call or at a live Event! If you have any questions on becoming a member give Carolyn a call!

Lydia Zielinski

ASTPS Director of Membership 
Lydia joined the ASTPS team in early 2020 just in time for a crazy year. She helps with all the things behind the scenes that helps ASTPS run smoothly. For example the logistics of putting together and shipping hundreds of packages a month! She is also the primary contact here at ASTPS when you give us a call.

Angelene Wierzbic

ASTPS Event Support
Ang is primarily a case manager that works closely with LG Brooks at Lawler & Witkowski CPAs. However when we run live events at ASTPS Ang is typically our “question coordinator” and helps facilitate the events and keeps them running smoothly. She has a tremendous knowledge of tax resolution and has worked and consulted on hundreds of cases in her 17 year career.