About Us

Jeffrey R. Stefforia, CPA, Partner

Jeff is president and a shareholder of Stefforia, Petik & Carlson, CPAs and is a graduate of Walsh College, Troy, Michigan. Jeff is a licensed CPA in the State of Michigan since 1991.

Over more than 30 years, Jeff has provided audit, accounting, tax and consulting services to clients in many different industries including manufacturing, franchising, retail and wholesale.

Jeff is a member of the American Institute of Certified Public Accountants, the Michigan Association of Certified Public Accountants, and the Washtenaw Estate Planning Council. He has been the treasurer and vice-chair of the Alzheimer’s Association, Michigan Great Lakes Chapter, treasurer of The Neutral Zone, an Ann Arbor teen leadership development organization and is currently the treasurer for Our House, a Washtenaw County based not-for-profit focused on helping young individuals, aged 14 -25-years-old, successfully transition from foster care to adulthood.

In his spare time Jeff enjoys traveling with his wife Debbie and occasionally playing a round of golf.

jstefforia@stefforia.com

Tim Petik, CPA, Partner

Tim is a shareholder of Stefforia, Petik & Carlson, CPAs and is a graduate of Eastern Michigan University, Ypsilanti, Michigan. Tim is a licensed Michigan CPA since 1995.

Tim has over 30 years’ experience assisting small businesses, individuals, non-profits and quasi-governmental entities in achieving their financial goals. Tim has a wide range of accounting and tax experience, including the industries of manufacturing, construction, retail, service and not-for-profit. Tim is well-versed and has provided tax consulting services for individuals, “S” and “C” corporations and LLCs.

Tim is a member of the American Institute of Certified Public Accountants and the Michigan Association of Certified Public Accountants. He served as Treasurer for the Livingston County Chapter of the American Red Cross and Washtenaw Area Community Advocacy.

Kirk M. Carlson, MBA, CPA, Partner

Kirk is a shareholder of Stefforia, Petik & Carlson, CPAs and is an MBA graduate from Wayne State University, Detroit, Michigan. He also has a Bachelor’s in International Relations, James Madison College, Michigan State University, East Lansing, Michigan. Kirk is a licensed CPA in the State of Michigan since 1993.

Prior to joining the firm Kirk managed his own CPA firm for ten years and worked for several Metro Detroit businesses over that last twenty years as their senior financial manager. Kirk has been an Associate Professor at Walsh College in Troy and a Lecturer in Wayne State University’s School of Business and has taught introductory financial accounting, managerial accounting and accounting information systems courses.

Kirk is a member of the American Institute of Certified Public Accountants and the Michigan Association of Certified Public Accountants.

An avid runner, Kirk has finished 16 marathons, including running the Detroit Marathon six times. He is married and has three adult children.

kirk@stefforia.com

Ryan Mccollough, MS, CPA

Ryan is a senior accountant of Stefforia, Petik & Carlson, CPA’s and is a Master of Science in Accounting graduate from Eastern Michigan University. His other academic achievements include a Bachelor of Arts in Finance from Michigan State University and two Associate Degrees from Oakland Community College. Ryan is a licensed CPA in the State of Michigan since 2017.

Ryan has over 10 years of public accounting experience, which includes providing tax services to businesses, individuals, and not-for-profits in both international and domestic settings.

Ryan is a member of the American Institute of Certified Public Accountants and the Michigan Association of Certified Public Accountants. He participated in the A2Y Chamber Leadership program and attributes this experience to additional insight of the local community. He is also a notary public appointed in the State of Michigan.

When he is not crunching numbers, he enjoys outdoor recreational activities with his wife and son including cycling, hunting, fishing, and visiting the family cottage near Lake Huron.

ryan@stefforia.com

Jin Wha Chung, MA, CPA

Jin Wha is a staff accountant of Stefforia, Petik & Carlson, CPAs. He completed his accounting course of study at Washtenaw Community College and University of North Alabama. Jin Wha also holds a Bachelor’s and Master’s degree in Economics from Seoul National University, South Korea. Jin Wha is a licensed CPA in the State of Michigan since 2019.

Prior to pursuing his accounting degree, Jin Wha was the owner and manager of the Sushi Cafe Restaurant in Ann Arbor for eight years.

Jin Wha is a member of the American Institute of Certified Public Accountants and the Michigan Association of Certified Public Accountants.

He enjoys playing tennis. He is an active elder in his church and has been the choir director for over 25 years. Jin Wha is married and has two adult children.

jinwha@stefforia.com

Brian Winters, Accountant

Brian is a staff accountant of Stefforia, Petik & Carlson, CPAs. He is an accounting graduate of Eastern Michigan University, Ypsilanti, Michigan. He also holds a Bachelor’s in Political Science from University of Michigan-Dearborn.

Brian started his accounting career with the firm over ten years ago. He has a wide range of accounting and tax experience and works with clients in many different industries including manufacturing, franchising, retail and wholesale.

Brian and his girlfriend enjoy traveling and he and his four kids enjoy time outdoors especially riding bikes and geocaching.

brian@stefforia.com