Comprehensive Portfolio

Accounting and Auditing

Whether you require a financial statement audit, review or compilation, O’Connor & Drew, P.C. will respond to your needs efficiently and cost effectively.

Business Consulting

We offer industry-specific guidance based on our real-world experience and know-how of solving some of the most complicated financial and business challenges.

Business Valuation

We understand the complex situations and issues involved in valuing a business interest and our professional valuation experts have many years of experience valuing hundreds of diverse companies.

Cost Segregation

Partnering with you and your internal expert engineer or architect, we conduct a cost segregation study to determine how to maximize your business’ legally allowable depreciation deductions.

Employee Benefit Plans

We work directly with you to ensure all requirements are met for 401(k) and 403(b) plan audits, Form 5500 preparation, and DOL compliance regulations.

Estate Planning

Analyze the financial strengths and weaknesses of a business and its management team, while working with all parties involved to ensure a smooth transition and sustainable business growth into the future.

Fraud Investigation / Forensic Audits

We can perform a fraud investigation for any business that becomes aware or suspects the possibility of a potential misappropriation of assets within their organization.

Internal Audit Services

We offer a range of internal audit performance improvement services that yield flexible, scalable, sophisticated solutions catered to your industry that address your unique needs.

IT Audit Services

OCD Tech provides professional IT Audit solutions based on our experience, extensive expertise, and readily defined documentation.

Mergers and Acquisitions

We provide sophisticated tax advice to individuals and business entities that are in the process of acquiring or divesting businesses.

Outsourced Controller & Accounting Services

It’s amazing what businesses can gain by outsourcing their finance and accounting functions.  Our services are tailored to meet your organization’s unique needs.

Succession Planning

Our team of highly-trained professionals is ready to assist you with the tools and planning strategies you to balance your long-term business objectives for continued growth and profitability.

Tax Planning and Preparation

We provide a full range of federal, state, and local tax services, anticipating and identifying any and all tax-saving opportunities.

Warranty Parts Reimbursement Analysis

Most auto manufacturers reimburse dealers for warranty parts at a rate of cost, plus which differs from the average dealer who marks up retail parts at cost, 70 plus to 90.

Wealth Management

Our wealth management professionals have the technical expertise to advise our clients on sophisticated tax and financial planning strategies.


25 Braintree Hill Office Park
Suite 102
Braintree, MA 02184
Additional Locations


Monday-Friday: 8:00 - 5:00
Saturday & Sunday: Closed


Phone:  617-471-1120
Fax:  617-472-7560
Email:  [email protected]