We work with you on a personal level to determine the best solutions for your unique needs, then leverage our seasoned expertise to achieve the best possible results.


We are your trusted partner in success. Our firm is large enough to offer a full range of professional services at a fair price, but small enough to give you the individual attention that you deserve.


Rest assured that when a need arises, our firm is ready and capable to handle everything for you so you can focus on what matters most to you.

Staff Profiles

Small Business Aide was founded by Mary Passino in 1999 to fill a void in the greater Boston market. As I saw the void, many large accounting firms don’t have time to work with startups. My goal was to establish a hands on accounting firm to help individuals and small businesses. I take the time to get to know my clients, finding out what they need and help make them successful.

I received my Juris Doctorate from Massachusetts School of Law with a concentration in Tax. I obtained my Bachelors of Science in Accounting from Tampa College.  I complete yearly tax update training in addition to continual education classes.

I have worked with numerous non-profits during my 19 years in business.  My experiences include labor unions, women empowerment programs, mentoring camps, international teaching programs and various churches.  Typical requirements within non-profits include required state reporting, obtaining and regaining tax exempt statuses, all required reporting and all tax returns.

My experience with business entity types ranges from sole proprietors to partnerships. Within corporations, I set up and work with LLC’s, S and C corporations.

I have set up trusts including tax id numbers, drafting paperwork including disabled needs and trust return taxes. My work with estates includes creating tax id numbers, establishing final accounting and tax preparation.

I work within public accounting industries including trucking companies, many construction companies, food service, electrical and flooring companies. Within the industrial fields, I complete weekly, monthly and quarterly payroll tax, financials – balance sheets, profit and loss and statements of cash flows and workers comp audits. Within the food industry,  I prepare meals tax, quarterly statements, financials and workers comp audits. Work with attorneys includes preparing monthly and quarterly reports, payroll, 3-way IOLTA reconciliations and financial statements.

I work with a variety of businesses including international information consulting consortium, with monthly and yearly tax reporting and financials. I work with ESL programs. I work with several graphic artists, real estate agents, realty management firms, moving companies, and family business farms.

My tax return clients include US citizens who live and work in the international realm where I complete international tax returns currently for 7 different countries. I currently prepare tax returns in 25 different states.

I also am currently providing consulting services for other tax preparation services in neighboring states.