Business and individuals rely on us for

Personalized Attention
with the depth of the big firms

Please note our firm has merged with Vasil & Dowd CPAs

Silveira at a glance

Founded to work with the enterprise-building spirit, advising real estate investors, international, and business to grow to the next level of success.


Lets talk tax strategy.


Our tax-strategy focus, coupled with collaboration, is at the heart of what we do, which is to provide a seamless process for our advisory and compliance services and to help our clients mindfully form, build and evolve their enterprises.

We don’t do it all ourselves. We like to work shoulder-to-shoulder with our clients and all of their advisers – in fact we insist. The products are better and the work is more thorough.

We believe this approach provides a truly client-driven result.

Our goal is to be a CPA firm that our client WANT to talk to on a regular basis – even if just to chat.

Derek Silveira

Our Services

Our areas of expertise include tax strategy and compliance for individuals, corporations and flow-through entities – domestic and international – including merges and acquisitions. We routinely work with complex tax situations facing businesses, business owners, and partners and shareholders of large organizations.


Commercial and Residential Real Estate
Operating and Investment Companies
Executive Compensation
Multi-State Tax
Professional Athletes
Transfer Pricing
Business | Individuals | Non Profits
Baseline CPA Firm Work
Accounting Assistance
Bookkeeping Referral Assistance
Payroll Recommendation and Referrals


Business Cash flow and Tax Strategy
Individual Income Tax Planning
Overhead Control and Reduction
Mergers and Acquisitions
New Business Tax Structuring


Research, special projects, special filings, and other requests not strictly related to tax compliance


Your information is protected using-tools with latest and strongest encryption. We pride ourselves in the protection we offer our clients.


We are available to answer phone calls, emails, and text messages throughout the year, and also offer year-end planning where warranted


Our office is paperless with tools to easily and securely transmit information to outclients and to most taxing authorities


Derek oversees the rapidly growing firm and (currently) 3 staff providing technical review and consultation to each item of work that is delivered to out clients. Derek is the key contact at the firm – but not the only contact. He brings more than 15 years of tax research and knowledge ranging from individual, corporate, international, state and local, trust and estates, as well as gift taxation and non-profit taxation. Derek spent much of his career both in a major Boston-based law firm then a large regional (turned national) CPA firm in Boston. He is trained in research, compliance and advisory work related to income taxation and versed in many of the related fields.


P & M, PC
CBIZ Tofias
Day, Berry and Howard LLP
Choate Hall and Stewart


D’Amore-Mckim School of Business at Northeastern University, MST
University of Massachusetts, Amherst, BS