Our Leadership Team

Don, along with Joe Rossi Sr., started McCullough Rossi in 1984 and takes pride in resolving complex tax situations for the firm’s wide variety of clients. He also enjoys knowing that each workday presents a new challenge.

Michigan State University, Bachelor’s degree in accounting

Founded McCullough Rossi: 1984
Don McCullough
Owner, C.P.A

Joe, a hardworking client advocate and businessman, started McCullough Rossi in 1984 and has been a mentor to his associates ever since. He’s extremely proud of the team he’s built at his firm, and he’s enjoyed working with his broad client range for so many years. Joe leads the entire firm with the following philosophy: “Work hard, and treat your customer’s business as if it were your own.”

Bachelor’s degree in business and C.P.A. designation at DePaul University

Founded McCullough Rossi: 1984
Joe Rossi Sr.
Owner, C.P.A.

Doug is the final reviewer on approximately 50 percent of nontax files and 90 percent of financial statements before issuance, proving his analytical skills are second to none. He has spent his entire career with McCullough Rossi and believes that responsibility, honesty, and accountability are three of the most important professional values a person can uphold.

Bachelor’s degree in accountancy at Northern Illinois University

Joined McCullough Rossi: July 1986
Doug Leitzen

Jeff prides himself on being able to clearly communicate financial information to his clients in a way that helps them manage their business. He believes in providing solutions to client problems, and has proven he is skilled at ascertaining clients’ needs and tailoring McCullough Rossi’s services to meet those needs. He enjoys being considered a trusted advisor to his clients and having his ideas positively impact family businesses.

Bachelor’s degree in accounting at Illinois State University

Joined McCullough Rossi: July 1998
Jeff Weichman

As a younger member of the McCullough Rossi staff, Joe brings a new and different perspective to the cultural, technological and business development side of the firm. His role as a financial accounting and tax advisory associate makes him well suited to help his clients in any way possible, but he also appreciates and embraces the wealth of knowledge and experience found among his coworkers.

Master’s degree in accountancy at the University of Illinois at Champaign/Urbana

Joined McCullough Rossi: January 2012
Joe Rossi Jr


Our Professionals

Matt’s ability to handle all aspects of his clients’ needs, whether it be assisting with their monthly and year-end accounting, preparing financial statements and tax returns or providing any additional business services, has been a great asset to McCullough Rossi for years. His priorities have always been to work hard and give his clients his very best every day.

Bachelor’s degree in business at University of Wisconsin-Whitewater

Joined McCullough Rossi: January 1991
Matt Amburn

Jim has spent his entire accounting career with McCullough Rossi. His professional motto, “The key to knowledge is knowing where to find the answer,” comes hand-in-hand with his decades of experience. Clients know they can trust Jim to find the answer to whatever question they may have.

Education: Bachelor’s degree in accounting at Eureka College

Joined McCullough Rossi: June 1987
Jim Crowe

Anne is certified to take care of auditing and tax services for small to medium-sized companies. She also teaches finance to children at local grade schools through the Junior Achievement program. Anne believes in treating clients and coworkers the way she would like to be treated, which falls in line with the best advice she’s ever received: “If you can be anything, be kind.”

Bachelor’s degree in accounting at Elmhurst College

Joined McCullough Rossi: 1999
Anne Kozlowski

Stephanie comes to work knowing that every day presents a new challenge. No day is the same. And with the terrific client base, Stephanie has no reservation spending the workday with the client, rather than in the McCullough Rossi office.

Northern Illinois University

Joined McCullough Rossi: 1989
Stephanie Ottens

“Always double check.” That’s the mantra Chris has followed during his 22 years in public accounting. With a broad range of skills, Chris prides himself on being able to assist his clients with whatever service they may require. He appreciates the historically low turnover rate of clients and staff at McCullough Rossi, saying, “We’ve grown with our customers, and they are confident that we will remain with McCullough Rossi and with them.”

Bachelor’s degree in accounting at Northern Illinois University

Joined McCullough Rossi: January 1993
Chris Roberts

Adele is the “go-to” person at McCullough Rossi. Her ability to keep the office running smoothly always has been appreciated by clients and coworkers alike. She is known for her dependability, loyalty and understanding nature, all of which work to enhance a client’s experience at the firm.

Moeser Secretarial School

Joined McCullough Rossi: February 1986
Adele Severino
Firm Administrator

Mark enjoys working at McCullough Rossi because he’s able to focus on each client’s specific and unique needs. He is proud to work for a company that does not take a cookie cutter approach when dealing with financial solutions and business operations.

Western Illinois University, B.S. and DePaul University, M.S.T.

Joined McCullough Rossi: October of 1989
Mark Gholson

As a tax specialist, and with nearly 30 years of experience in accounting, Sheryl is an extremely knowledgeable C.P.A. She believes in producing quality work for her clients, and is proud to work alongside those whom she calls “great colleagues” at McCullough Rossi.

Bachelor’s degree in accounting at Indiana University; Master's degree in taxation from DePaul University

Joined McCullough Rossi: June 1997
Sheryl Hammel