Your Accounting & Tax Planning Resources

Business Advisors

Lopez, Chaff, and Wiesman Associates are members of: Accreditation Council for Accounting and Taxation Inc. (A.C.A.T.), Association of Certified Fraud Examiners (A.C.F.E), Massachusetts Association of Accountants (formerly known as M.A.P.A.), Massachusetts Society of Enrolled Agents (M.S.E.A.), National Association of Enrolled Agents (N.A.E.A.), National Society of Tax Professionals (N.S.T.P.)

Antonio (Tony) Lopez   

CPA, MST, EA

Antonio Lopez is a founding partner of Lopez, Chaff and Wiesman Associates, and has been in public practice for over 25 years. Tony has extensive experience in Corporate and LLC taxation–concentrating in the areas of manufacturing, distribution and wholesale, telecommunications, as well as high technology and retirement planning.

Tony is a graduate of the University of Notre Dame with a Bachelor of Science in Accounting, and holds a Master of Science in Taxation from Bentley University. Tony has also received the Chartered Financial Consultant designation by the American College. He is professionally associated with the Massachusetts Society of Certified Public Accountants and Enrolled Agents, the Massachusetts Association of Accountants, along with the National Association of Enrolled Agents and the National Society of Tax Professionals. Tony is also a member and Past President of the Lawrence Rotary Club.

William R. (Bill) Chaff   

EA

William Chaff began practicing accounting in 1984, and then partnered with Tony Lopez in 1986 to create Lopez and Chaff Associates. Bill specializes in Corporate, Partnership, and LLC taxation, focusing on service companies, real estate, environmental services, restaurants, and software firms. Bill has extensive experience in the preparation and audit representation of estate and gift taxes. He has worked with local law firms as their outsourced expert in this area.

Bill is professionally associated with the Massachusetts Society of Enrolled Agents, the Massachusetts Association of Accountants, along with the National Association of Enrolled Agents and the National Society of Tax Professionals. Bill is a frequent speaker at local venues on business topics as managing financial milestones, small business and cash flow, and home ownership and taxes to groups of new homeowners.

James E. (Jim) Wiesman   

CPA, MBA, EA, CFE

James Wiesman has worked in accounting for over 35 years and formed Wiesman and Associates in 1983. He merged his practice with Lopez and Chaff Associates in 1989. Jim is an expert in Corporate, Partnership, and LLC taxation, and specializes in IRS relations and negotiations. His corporate clientele includes companies in the manufacturing, realty, retail and wholesale sectors, along with high technology and software businesses.

Jim received his Bachelor of Science degree from Bentley University and a Master of Business Administration from Southern New Hampshire University. He is professionally associated with the Massachusetts Society of Enrolled Agents, the national Association of Enrolled Agents, the National Association of Tax Professionals, the National Society of Tax Professionals, and the Association of Certified Fraud Examiners.

Douglas E. Thompson   

CPA, EA

Doug Thompson has been a member of Lopez, Chaff and Wiesman Associates for 14 years, starting out as a Staff Accountant. He has steadily advanced his career, becoming a Principal of the firm in 2011. Doug specializes in Corporate, Partnership, and LLC taxation, focusing on construction, manufacturing, medical, flooring industries and non-profit organizations. He also has experience in preparing review and complication financial statements.

Doug graduated from the University System of New Hampshire with a Bachelor of Science degree in Accounting and a minor in Mathematics. He became a Certified Public Accountant in 2008. He is professionally associated with the Massachusetts Society of Enrolled Agents, the National Association of Enrolled Agents, the National Society of Tax Professionals, the Massachusetts Society of CPAs, the New Hampshire Society of CPAs and the AICPA. Doug is also a current member of the Plaistow New Hampshire area Commerce Exchange.

Catherine L. (Cathy) Gable   

EA

Catherine Gable has been a member of Lopez, Chaff and Wiesman Associates for 20 years. Starting out as an accounting clerk, Cathy steadily advanced her career, becoming a Principal of the firm in 1998. Cathy specializes in accounting and tax planning for construction, manufacturing, and communications industries. She also assists clients in establishing their accounting systems through QuickBooks software.

Cathy is a graduate of Northern Essex Community College where she received an Associate Degree in Business Management. She also attended the Accounting Certificate Program at Merrimack College, along with the H & R Block Tax School. Cathy attends the yearly UMass Tax School Seminar to keep informed with the latest IRS/MA DOR tax updates.