Roger Siefert

Roger Siefert has more than 35 years of experience in assisting clients and counsel with forensic accounting, business litigation support and audit services, and has consulted on a variety of accounting issues.

Roger has led multiple investigations of alleged financial statement fraud and other misappropriations in various industries, including financial services, insurance, broker / dealer, healthcare, high-tech, manufacturing and real estate, and has participated on the defense teams of multi-million dollar securities class action lawsuits.

In addition, Roger has acted as a neutral arbitrator in disputes involving purchase price adjustments; assisted counsel throughout the various stages of litigation; performed multiple business valuations of companies; and testified as an expert at deposition and at trial on matters relating to cost accounting, cost allocation and damages computations. He has also acted as an expert for the Tax Division of the United States Department of Justice (“DOJ”) as to the ethical obligations of Certified Public Accountants (“CPA”).

Roger’s thought leadership has been published in the American Bar Association (“ABA”) Criminal Justice Section newsletter, and he has served as a guest lecturer at Rutgers Business School, Pace University, John Jay College, and Indiana University’s Kelly School of Business. He has also served as a panelist at industry conferences and presented at various continuing legal education venues.

Prior to joining StoneTurn, Roger was a Managing Director with Finance Scholars Group and with the Financial Advisory and Litigation Consulting practice of LECG. Previously, he was the North America Leader of the Financial Advisory practice at Kroll, and a co-practice leader of the Forensic Accounting and Litigation Consulting group at Aon Consulting.

Roger began his career at Deloitte, Haskins & Sells, ultimately, becoming a partner at the successor firm, Deloitte & Touche, where he spent 10 years serving audit clients, ranging from small, closely-held businesses to large, publicly-traded companies. He also served as a Firm Designated Specialist for Commercial Banking. In addition, Roger spent approximately five years working in Deloitte’s Office of General Counsel, assisting lawyers with defending claims against the firm. He later specialized in forensic accounting and litigation consulting in Deloitte’s Dispute Consulting practice in New York.

Roger is a Certified Public Accountant (licensed in the states of Indiana and New York), Certified in Financial Forensics and Accredited in Business Valuation.

Turn to Roger

The collaborative culture at StoneTurn means that there is an internal expectation to invoke the experience and skills of the right experts to provide clients with the best answers.

Roger Siefert

Q: Can you give an example of StoneTurn’s lean and efficient approach?


It is difficult to cite just one example because all of our engagements are managed in a lean and efficient manner. When starting on a new assignment, the StoneTurn team’s first thought is often, “How can we streamline this matter?” We recently worked on an engagement that involved sorting through general ledger entries over a period of several years. It was literally thousands, if not tens of thousands, of lines of data. We drew upon the skills of our data analytics experts and, with the use of search terms and conditions, identified relevant transactions for follow-up in a matter of hours.

Q: StoneTurn is known for being collaborative. Describe for us how the firm is able to work so seamlessly with clients and as colleagues.


Collaboration is critical in order to deliver excellent service to our clients. StoneTurn has a full tool kit of skills and experience, but one person alone does not possess the collective expertise. The collaborative culture at StoneTurn means that there is an internal expectation to invoke the experience and skills of the right experts to provide clients with the best answers. I have frequently been engaged by clients because of my expertise on a particular issue. During the course of an assignment, as commonly happens, an issue arises with which I have not had an abundance of experience. In those cases, I consult with the firm’s resident expert(s) to make certain I provide the client with the most considered analysis to the problem.

Q: Every day, StoneTurn professionals help clients untangle complex problems. Can you give us an example of a great client challenge you faced and how you successfully solved it? (Please no naming names of clients here).


A StoneTurn client and its personnel were being investigated by the U.S. Securities and Exchange Commission (“SEC”), which alleged that the client’s accounting treatment of financial instruments used to hedge rate changes on variable rate loans was inappropriate. The guidance with respect to hedge accounting includes some of the most complex pronouncements issued by authoritative bodies. In fact, it is so complicated that others wrestling with these issues failed to see the “forest for the trees.” The StoneTurn team identified the heart of the matter quickly and articulated the issue to the attorneys, client and the SEC in a simple, concise manner. This led to a favorable settlement with the SEC.