Meet our Denver Tax Professionals

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 in 2005 with a Bachelor’s degree in Accounting. He is a CPA and has worked with Advanced Tax Solutions solely in IRS controversy since 2005. He 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 competence in IRS negotiations.

• Certified Public Accountant – Licensed in Colorado to practice before the IRS
  
• 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
• Enrolled Agent - Licensed nationally to practice anywhere in the United States
• Member of the American Society of Tax Problem Solvers
• Member of the 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 received a Bachelor’s degree in Accountancy from Colorado Technical University. He is a member of the American Society of Tax Problem Solvers (ASTPS) and has received their highest professional recognition (Certified Tax Resolution Specialist). He also received the National Association of Enrolled Agents’ highest recognition for working with IRS resolution cases (NAEA Fellow). These certifications are only given to those who have the experience, educational requirements, and proven competence in IRS negotiations.

• 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 the National Association of Enrolled Agents (NAEA)                                               
• 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 CO Society of Enrolled Agents

Michael Westerberg

Mike Westerberg holds degrees in Sociology and Criminal Justice.  He followed this up with a law degree from Phoenix School of Law. After graduating law school, Mike earned his Masters of Law in Taxation from the University of Denver.  He has been working in tax resolution since 2014. Mike has earned the highest level of competence (Certified Tax Resolution Specialist—CTRS) from the American Society of Tax Problem Solvers.

• Licensed Attorney in Colorado & Arizona
• Masters of Law in Taxation - University of Denver (DU)
• Member of the United States Tax Court Bar
• 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

Charles Forsyth

Charles graduated from Colorado State University with a concentration in Accounting. He is currently pursuing his Masters in Taxation at the University of Denver’s Sturm College of Law. Charles has received the American Society of Tax Problem Solutions highest Certification (Certified Tax Resolution Specialist). He also received the National Association of Enrolled Agents’ highest recognition for working with IRS resolution cases (NAEA Fellow). These certifications are only given to those who have the experience, educational requirements, and proven competence in IRS negotiations.

• Enrolled Agents — 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)
• 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 the 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