About Us

At Santoro & Sinnamon CPAs, we pride ourselves on having a remarkable range of talent and expertise varying from simple to complex financial and tax related issues. Our talented staff offers expertise in the fields of accounting, bookkeeping, payroll and tax preparation services. We are dedicated to providing exceptional customer service and high quality work. 


Lorena Sinnamon, our managing partner of the firm, holds a license from the NH Board of Accountancy as a Certified Public Accountant as well as a degree in Accounting and a degree in Hotel and Restaurant Management from the Whittemore School of Business at the University of New Hampshire. Her broad work experience encompasses management roles in large international firms such as Ernst & Young where she led audit and tax engagements for companies such as Coca Cola, Colgate and Sig Arms. She has also supervised and managed tax departments for local NH firms such as Nathan Wechsler & Company and Mason & Rich where she worked closely with NH business owners and individuals.

She is a long time member of the American Institute of Certified Public Accountants and the New Hampshire Society of Certified Public Accountants and is a QuickBooks ProAdvisor. In addition to her professional career, Lorena is active in the community and has previously served on the Municipal Budget Committee and currently holds the position of Town Treasurer. She serves on a number of boards for private and non-profit organizations throughout the state. Her weekly tax articles are published and can be read in various newspapers across NH. She does consulting work for other NH CPA firms and can often be found teaching tax seminars around the state.

Lorena Sinnamon, CPA
Managing Partner

Our Staff

Laurie Murray, CPA
Laurie Murray holds a license from the NH Board of Accountancy as a Certified Public Accountant as well as a degree in Accounting from Southern New Hampshire University. Laurie has over 25 years of public accounting experience and over 20 years of management experience in both local and regional CPA firms, where she managed and served a broad range of clients from start-up companies to multi-national businesses. Laurie’s areas of expertise are in tax, accounting and management advisory services and solutions. Laurie’s service to clients includes strategic tax planning, federal and multi-state tax reporting and compliance, design and development of streamlined accounting and reporting systems and strategic business planning and development.

Karen Mayo, CPA
Karen holds a license from the NH Board of Accountancy as a Certified Public Accountant. She has a bachelor’s degree in Accountancy from Bentley College (University) and a Masters in Business Administration from Plymouth State College (University). Karen has over 25 years of experience in the accounting field, including years in local and regional CPA firms, as an internal auditor, and as a Controller.  Karen’s focus at the firm includes tax preparation and planning for individuals, and financial statement preparation.  In her spare time, she is most likely outside hiking, biking, or gardening, or exploring our national parks.

Ann Marie, CPA
Ann Marie brings over 30 years of experience as a Certified Public Accountant to our practice. She has a wide range of accounting, tax and audit experience in public accounting.  Additionally, her background includes working in the private sector as well as governmental agencies.  Ann Marie’s area of expertise is in financial statement compilations and review as well as individual and business tax return preparation. Outside of her profession, Ann Marie enjoys traveling, hiking and kayaking. She has recently taken up watercolor painting and is learning to play piano.

Donna M. LaClair, CPA
Donna is a Certified Public Accountant licensed in the State of New Hampshire. She has degrees in Business Administration and Economics from the Whittemore School of Business and Economics at the University of New Hampshire. She has 30 years of experience in public accounting at various firms in New Hampshire and Massachusetts, dealing in all aspects of public accounting. Donna is active in her community serving as a ballot tabulator and Trustee of the Trust Funds for her hometown of Loudon. When not at work, she can be found enjoying time with her family, friends and multiple cats or reading true-crime books.

Leslie Fanti, Staff Accountant
Leslie Fanti has been doing bookkeeping for 15 years. She started her career in private accounting and later worked at a CPA firm in New York for 11 years. Leslie has extensive knowledge with QuickBooks, bookkeeping, payroll and billing. She is active in her community participating in the PTO for 5 years, serving as President for 3 years, on the Board of Directors for the community she lived in for 3 years, coached her children’s baseball/softball teams, class Mother for all three of her children. She is currently a member of the Lions Club in Ossipee. In her spare time, she likes to garden and enjoys going motorcycle riding in the summer.