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About Us

About Our Firm

For over 30 years, Jon C. Sidoti, PC has been a beacon of expert service with a personalized touch for South Shore businesses seeking tax management, accounting services, financial planning and more.

Our high standards for excellence and our acute attention to each client has achieved our firm resounding respect of businesses and financial firms across the region.

With the mission to help our clients maintain financial viability in the present, while taking a proactive approach to reach future goals, we offer the communication and professional dedication you desire in a firm.

Meet The Team

Jon Sidoti, CPA, President

After graduating from Northeastern University and obtaining his CPA license, Jon Sidoti joined the international accounting firm that now bears the name KPMG.   Working with both large and small companies, Mr. Sidoti enjoyed a wide range of accounting, tax and business auditing experiences but found he preferred working with smaller companies.  “I clearly enjoyed working with closely-held business and their owners” says Sidoti. 

After KPMG, Sidoti joined a Plymouth, MA consulting firm, where he became a partner in charge of tax planning.  In October 1988, Sidoti founded the firm which has evolved into Jon C. Sidoti, PC.

Jon lives in Plymouth with his wife Jean and has 3 grown children.  He is an avid cyclist and enjoys skiing.  

Angela C. Brown-Stevens, CPA, Manager

Angela joined Jon C. Sidoti, P.C. in November 2017. She joins the firm with approximately 20 years of public accounting experience. Angela provides a full range of tax and accounting services to business and individual clients. She is well versed in complex corporate tax filings and pass-through entity tax matters. Angela maintains a current knowledge of the changing individual and entity tax laws and maintains close relationships with closely-held companies and their owners. Angela has several years of experience providing financial statement review and compilation services.

Angela is a member of the American Institute of CPAs, the Massachusetts Society of CPAs, and is a graduate of Bridgewater State University with a BS in Accounting and in Economics.

Douglas Nickerson, EA, MBA, Manager

Doug’s responsibilities include corporate, partnership, personal, and trust tax return preparation, financial statement preparation, and IRS tax assessment and collection issues.

Doug earned his MBA at University of Massachusetts Dartmouth and is registered with the Internal Revenue Service as an Enrolled Agent (EA). He is currently pursuing his CPA.

Mary Talbot Fuller, CPA, Manager

Mary Joined Jon C. Sidoti, PC in January 2020 and brings over 30 years of public and private accounting experience in a diverse spectrum of industries. She has provided comprehensive accounting and income tax preparation services to individuals, corporations, partnerships and trusts. In addition, as a corporate controller for a number of entities, she managed all the accounting and finance operations as well as human resources.

Mary is a graduate of LeMoyne College with a Bachelor of Science in Business Administration majoring in Accounting. She is a member if the Massachusetts Society if CPA’s.

Deanna Peck, Staff Accountant 508-747-9955

Deanna joined the firm in 2021. She has her BS degree in accounting from UMass Dartmouth, and many years of accounting experience with private large and small companies in various industries.

As a new resident of Plymouth, Deanna enjoys spending time with her husband and family exploring Plymouth and the surrounding area.

Erica Burns, Jr. Accountant

Erica joined the firm in 2023 right after graduating from Southern New Hampshire University with her associate’s degree in accounting. Before joining the firm, Erica worked as a tax specialist handling personal tax returns. She is currently enrolled in a bachelor’s program pursuing her CPA.

Erica spends her free time with her family and enjoys traveling to new places.

Samantha Carlson, Tax Specialist

As a Tax Specialist, Samantha’s responsibilities include tax preparation of individual tax returns, bookkeeping and billing. Prior to joining our firm she worked as an administrative assistant for a physical therapy office.

After graduating from Silver Lake High School, Samantha attended Cape Cod Community College and studied web design and accounting.

Samantha is married and has two children. She enjoys spending time with her family, camping and crocheting.

Donna D’Amelio, Administrative Assistant

As Administrative Assistant, Donna’s responsibilities include general office operations, as well as administrative and tax prep support to our staff. Before joining our firm Donna worked as a recruiting assistant at Koppen Group.

Donna is married and has 2 children. Outside of the office she enjoys travelling and spending time with her family.

Kelsey Snell, Administrative Assistant

Kelsey joined the firm in 2022. Kelsey comes to us with over 8 years of administrative experience in public accounting. Kelsey’s responsibilities include general office operations, as well as administrative and tax prep support to our staff.

Outside of the office Kelsey enjoys traveling and spending quality time with her family.