O'Connor & Drew P.C.

David A. DiIulis

Principal, CPA,MBA, CGFM 

David joined the firm in 1986 and became an Audit Principal in 1996. David has a wealth of experience working with government entities, higher education, and not-for-profit organizations. David is a certified government financial manager (CGFM). This certification demonstrates his commitment to expanding his knowledge in the highly technical government area. He received the Governmental Accounting and Auditing Certificate of Educational achievement for Single Audits. In addition, he has been instrumental in assisting a number of organizations in obtaining a Certificate of Achievement in Financial Reporting from the Government Financial Officer’s Association for its Comprehensive Annual Financial Report (CAFR). David has extensive experience assisting clients with GASB implementation and reporting. In addition, David has developed and presented seminars on a myriad of topics of interest to not for profit and governmental organizations. David also submitted articles that have been published in the Firm’s Higher Education newsletter.

To contact, please email: [email protected]

Areas of Expertise

Not-for-profit organizations
Government entities
Higher education
Automobile dealerships
Closely-held businesses


University of Massachusetts at Amherst – Bachelor of Business Administration – High Honors

Suffolk University – Master in Business Administration – High Honors


Massachusetts Society of Certified Public Accountants – Fellow (MSCPA)

American Institute of Certified Public Accountants (AICPA)

South Shore Chamber of Commerce
National Association of Colleges and Universities Business Office (NACUBO)

Eastern Association of Colleges and Universities Business Office (EACUBO)

Association and Government Accountants

Designated Government  Audit Quality Center Principal (GAQC)

Caring for our Community

Neponset Valley Chamber of Commerce – Former Member – Board of Directors

Wide Horizons for Children – Former Member – Chairman of Finance Committee


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


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


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