James O'Brien

James O'Brien, CPA, CFF


  • New York City
  • (609) 922-3042
James O’Brien is a Partner in Forensics, Litigation and Valuation Services at Grassi. He provides a variety of forensic and financial consulting and accounting related services to attorneys, insurance companies, governmental agencies and public and private corporations. The matters he routinely addresses involve disputes within construction, insurance, healthcare, technology, commercial and real estate companies.

Prior to joining Grassi, Jim spent approximately 28 years with international and regional public accounting firms and two years with a specialty-consulting firm. He concentrates his practice in providing expert witness services, litigation consulting and forensic investigations.  Jim focuses his practice assisting clients reconstruct financial activity to document—whether fraudulent and/or inappropriate financial transactions have occurred. Jim routinely testifies in court assisting the trier of fact determine the quantum of damages.  The forensic investigations encompass analysis of financial statements, tax returns, general ledgers and other original books of entry.  Jim also routinely analyzes contracts and agreements in dispute, which requires the estimation of damages, lost profits related to the dispute.  The matters generally involve a breach of contract claim, intellectual property and/or other contractual issues.


Coronavirus Disruption: Will Losses be Covered by Insurance Policies?

As businesses continue to experience large financial losses due to the COVID-19 pandemic, it is important for business owners to determine whether  insurance policies provide coverage for those losses. Insurance policies can provide coverage to protect for these types of losses, but the clauses and terms can be complicated to navigate.

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Understanding Business Interruption Insurance Claims During COVID-19

You have insurance coverage, but will it provide coverage for your COVID-19 losses? On May 8, join professionals from Grassi and Klehr Harrison Harvey Branzburg LLP, as they present a live webinar to bring insight and clarity to insurance policy clauses, potential exclusions, legal challenges, the claims process and the importance of documenting and substantiating a claim.



    BS, York College of Pennsylvania


    American Institute of Certified Public Accountants(AICPA)

    Pennsylvania Institute of Certified Public Accountants (PICPA)
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