John Boselli

John Boselli joined Advanced Tax Solutions in 2009. He serves as an assistant to the CPA’s and works on Tax Preparation & IRS Resolution Services. John has a Bachelor’s Degree in Liberal Arts from Bucknell University and a Master’ Degree in Business from Syracuse University. John is an avid fly-fisherman so you may see him on one of the many rivers he fishes in Colorado, Yellowstone Park, Montana, & Idaho.

Tax Resolution Associate

Glenn Robbins

Glenn graduated from Regis University with a Bachelors degree in Accounting. He has been solving even the most difficult Tax Problems as a professional of Advanced Tax Solutions since 2005. He is a familiar face as he is a key employee when it comes to Initial Consultations. He has been the mastermind for many of our new clients to find a solution against all hope and fix their tax problems! He enjoys representing clients to resolve various tax issues with such solutions as Offers in Compromises, Unfiled Tax Returns, Audits Penalty Abatements, and Installment Agreements. He is a Certified Public Accountant which allows him to represent clients in Colorado before the IRS. He is also an Enrolled Agent, which is a license that allows him to practice before the IRS anywhere in the nation. In addition, Glenn has received the highest credentials offered by the American Society of Tax Problem Solvers (Certified Tax Resolution Specialist).

(License Number: CPA.0026504)

• Certified Public Accountant – Licensed in Colorado to practice before the IRS
• Enrolled Agent – Licensed nationally to practice anywhere in the United States
• Member of the American Society of Tax Problem Solvers
• Certified Tax Resolution Specialist – The CTRS is highest designation issued by the American Society of Tax Problem Solvers designating competency in dealing with the IRS
• Member of National Association of Enrolled Agents
• Member of Colorado Society of Enrolled Agents

Todd Whalen

Did you know that there is a test that if you pass it you can sue the IRS? You have to fly to Washington D.C. to take the test, but if you pass it, you can sue the IRS for abuse of power in collection cases. But before you run out and buy that plane ticket, consider that the test has been around since 1942 and only about 300 people have passed it since its inception. On May 8, 2011, Todd became the 298th person to pass that test.

Todd is the Founder of Advanced Tax Solutions. He is a Certified Public Accountant which allows him to represent clients in Colorado before the IRS. He is also an Enrolled Agent, which is a license that allows him to practice before the IRS anywhere in the nation. In addition, Todd has received the highest credentials offered by the National Association of Enrolled Agents (NAEA Fellow) as well as of the American Society of Tax Problem Solvers (Certified Tax Resolution Specialist). He is an alumni of the international accounting firm KPMG Peat Marwick. Todd has a Masters of Taxation from the University of Denver. His personal hobbies include backpacking, fly-fishing and hunting. In 1998 Todd took a sabbatical and backpacked the full length of the 2,000 mile Appalachian Trail. A tidbit of knowledge about Todd that most don’t know is that at one time he was a controller in Yellowstone National Park but worked his way up to Fishing Guide. He closed his career in Yellowstone National Park captaining a boat and guiding on Lake Yellowstone in the Park.

(License Number: CPA.0012009)

• Founder of Advanced Tax Solutions
• Certified Public Accountant – Licensed in Colorado to practice before the IRS
• Enrolled Agent – Licensed nationally to practice anywhere in the United States
• Member of the American Society of Tax Problem Solvers
• Certified Tax Resolution Specialist – The CTRS is highest designation issued by the American Society of Tax Problem Solvers designating competency in dealing with the IRS
• Member of Colorado Society of Enrolled Agents
• NAEA Fellow – The “Fellow” is the highest designation of competency in dealing with the IRS that is issued by the National Association of Enrolled Agents.
• Member of National Association of Enrolled Agents
• Master of Taxation – University of Denver (DU)
• USTCP – Licensed before the Tax Court in all districts in the United States

Alex Petrosyan

Alex graduated from Colorado Technical University in with Bachelors in Accountancy and joined the Advanced Tax Solutions team in 2014. Alex is an Enrolled Agent which is a license that allows him to practice before the IRS anywhere in the nation. Alex is a member of the American Society of Tax Problem Solvers (ASTPS) and has received their highest professional recognition (Certified Tax Resolution Specialist). This Certification is only given to those who have the experience, educational requirements, and proven their knowledge and competence specifically related to negotiating solutions with the IRS. In addition, Alex is a member of the National Association of Enrolled Agents (NAEA). Alex has attained the highest designation of the Association (NAEA Fellow) further showing competence in solving even the toughest IRS problems!

In his free time, Alex loves to spend time with his wife and three small children. He loves hockey and regularly attends Colorado Avalanche games.

(License Number: EA.109959)

• Enrolled Agent – Licensed nationally to practice anywhere in the United States
• Member of the American Society of Tax Problem Solvers
• Certified Tax Resolution Specialist – The CTRS is highest designation issued by the American Society of Tax Problem Solvers designating competency in dealing with the IRS
• Member of National Association of Enrolled Agents
• NAEA Fellow – The “Fellow” is the highest designation of competency in dealing with the IRS that is issued by the National Association of Enrolled Agents.
• Member of Colorado Society of Enrolled Agents

Michael Westerberg

Michael Westerberg is a Mid-West native that grew up in South Dakota. He graduated with bachelors degrees in Sociology and Criminal Justice and decided to go to law school in Arizona. After graduating law school, he sought out further education at the University of Denver where he graduated with a Masters of Law degree in Taxation in 2015. Michael has been working in tax resolution since 2014, helping clients fix their tax problems with the Internal Revenue Service and various state departments of revenue. Michael spends his free time doing good political works, hiking in the Rocky Mountains, and watching baseball.

(CO Bar number: 52147; AZ Bar number: 031864)

Licensed Attorney in Colorado & Arizona:

Advanced Tax Solutions does not do legal work but, Michael’s legal training grants him a unique perspective and skill set when negotiating with the IRS. These licenses also grant Michael the ability to represent anyone in front of the IRS.

Masters of Law in Taxation:

Masters of Law degrees are rare and grant the attorneys who possess them specialized knowledge and expertise of almost all areas in that discipline. Because of Michael’s Masters of Law degree, he has vast and specialized knowledge of almost all areas of the Internal Revenue Code and how the IRS operates.

Member of the United States Tax Court Bar:

Because of Michael’s membership with the United States Tax Court Bar he can file Tax Court petitions and represent people before the United States Tax Court, which is usually the last battle ground for a Taxpayer to get a fair shake from the IRS. The United States Tax Court can force the IRS to follow the rules and regulations of the Internal Revenue Code and the United States Department of the Treasury when the IRS has stepped out of line.

Charles Forsyth

Charles is a graduate of the Colorado State University with a Bachelors in Business Administration with a Concentration in Accounting. Charles is currently pursuing his Masters in Taxation at the University of Denver’s Sturm College of Law. He is an Enrolled Agent and is admitted to practice before the IRS anywhere in the United States. He is an active member of the National Association of Enrolled Agents (NAEA) and has received their highest credentials for understanding and negotiating with the IRS (NAEA Fellow). Charles is also a member of the American Society of Tax Problem Solvers (ASTPS). Because of his experience, education, and proven competence in dealing with the IRS, Charles has received the American Society of Tax Problem Solutions highest Certification (Certified Tax Resolution Specialist). Charles is your go to guy if you have a tax problem and really want to understand how the IRS works, and how to fix even your toughest IRS problems!

(License Number: 127660-EA)

• Enrolled Agent – Licensed nationally to practice anywhere in the United States
• Member of the American Society of Tax Problem Solvers
• Certified Tax Resolution Specialist – The CTRS is highest designation issued by the American Society of Tax Problem Solvers designating competency in dealing with the IRS.
• Member of National Association of Enrolled Agents
• NAEA Fellow – The “Fellow” is the highest designation of competency in dealing with the IRS that is issued by the National Association of Enrolled Agents.
• Member of Colorado Society of Enrolled Agents

Susan R. Estes

Susan has a strong background for over 15 years in bookkeeping, taxes and administrative assistance experience working with many Denver based businesses where she was responsible for full cycle bookkeeping, accounts payable, receivable, payroll, bank reconciliations, and inventory. Susan has a Bachelor’s Degree in Finance and graduated Magna Cum Laude.

Outside of work, Susan enjoys relaxing with her husband Rick and her two dogs, Maggie & Rocky. She is a professional photographer and enjoys shooting high school seniors, professional head shots, families, and Denver based bands.

Tax Resolution Associate

Jenna Boyce

Jenna is currently enrolled at Arapahoe Community College working for her Associate Degree in Business. She has worked as an Administrative Assistant for almost 2 years at an Asphalt & Concrete Company located in Denver.

When Jenna is not working she enjoys relaxing with friends and family, playing pool, and enjoying the nature of colorful Colorado.

Administrative Assistant

Tabatha Clayburn

Tabatha joined the Advanced Tax Solutions team in May of 2017 after working 15+ years in retail management. She enjoys working with people and brings that experience into the office setting. In her spare time she enjoys playing sports, especially softball. She also loves cheering for our Denver home teams. She always keeps herself busy by camping, traveling to Las Vegas and spending time with her family. Most of all, she loves to spend time with her grandchildren.

Office Manager

Barbara Rael

Barbara has brought over 35 years of Administrative Assistant experience to Advanced Tax Solutions from working in the financial industry. Barbara is confident and well-organized with extensive experience in scheduling appointments, providing exceptional customer service and consistent clerical support. She is a highly approachable individual who has a pleasant attitude and a willingness to make a positive mark. Barbara and her husband of 30 years are natives of Colorado. She enjoys spending time with their twin grandsons, camping, fishing and riding their horses.

Administrative Assistant

Venessa Kendall

Venessa has over five years’ experience in the financial arena. She has worked as a bank teller and then as a financial wellness consultant. Her administrative skills keep the office running smoothly and allows the professionals to work on cases effectively and worry free. Vanessa is a true Colorado Native and enjoys Colorado’s beautiful scenery. She is an avid cook and her background even includes culinary school. She challenges herself in cooking diverse meals with engaging flavors.

Administrative Assistant

Neil Mitten

Neil joined Advanced Tax Solutions after a fulfilling career as a high school math teacher.After honing his interpersonal skill by working in a high school environment for 6 years, he decided to apply his math skills in the field of accounting. After working with high school students on a daily basis, dealing with IRS agents is a piece of cake.At Advanced Tax Solutions he assists in preparing tax returns and completing the IRS required financial information that is necessary when dealing with more difficult tax problems. Currently Neil is earning his Enrolled Agent certification, so he can be a front runner in difficult IRS situations.He has a bachelor’s degree in Economics from Loyola University Maryland.A recent transplant from Maryland, Neil is enjoying all that the beautiful nature of Colorado has to offer, particularly snowboarding and hiking.He is also an avid dancer of Lindy hop.

Tax Resolution Associate