StoneTurn Group Announces Expansion of its New York Office with the Addition of Two Senior Practitioners, Roger Siefert and Michel Hagenaar

NEW YORK--(BUSINESS WIRE)--StoneTurn Group, a forensic accounting and dispute consulting firm, today announced the addition of Roger Siefert as Principal, and Michel Hagenaar as Managing Director, in its New York, NY office. Roger and Michel bring over 40 years of combined experience assisting clients and counsel with forensic accounting, business litigation support and audit services, as well as consulting on various accounting issues.

“We are incredibly excited to welcome Roger and Michel to StoneTurn. Their vast knowledge regarding matters involving post-acquisition disputes, bankruptcy and forensic valuation matters, among others, enhances and complements our existing capabilities.”

Simon Platt, StoneTurn’s Managing Partner, said, “New York is an incredibly important market for us. We recognize that to compete in New York requires a practice built upon the strength and quality of its practitioners. Bringing on Roger and Michel and their breadth of experience demonstrates StoneTurn’s commitment to our practice, and in particular the New York market.”

Jonny Frank, Partner in StoneTurn’s New York office, added, “We are incredibly excited to welcome Roger and Michel to StoneTurn. Their vast knowledge regarding matters involving post-acquisition disputes, bankruptcy and forensic valuation matters, among others, enhances and complements our existing capabilities.”

About Roger Siefert

Roger has over 30 years of experience assisting clients and counsel with forensic accounting, business litigation and audit services. Roger has led multiple investigations of alleged financial statement fraud and asset misappropriations in various industries, including financial services, insurance, broker/dealers, healthcare, high-tech, manufacturing and real estate. He has assisted counsel in defending against allegations of financial statement misrepresentations in connection with multi-million dollar securities class action lawsuits and criminal white collar matters. In addition, Roger has acted as a neutral arbitrator in disputes involving purchase price adjustments, has performed multiple business valuations of companies, and has testified as an expert at arbitrations, at depositions and at trials on matters relating to Generally Accepted Accounting Principles (GAAP), Generally Accepted Auditing Standards (GAAS), SEC regulations, cost accounting, cost allocation and damages computations.

Roger began his career at Deloitte, Haskins & Sells (now Deloitte), ultimately becoming a partner. The first 10 years of his tenure at Deloitte were spent serving audit clients, ranging from small closely held businesses to large publicly traded companies. In addition, Roger spent approximately five years working in Deloitte’s Office of General Counsel assisting lawyers with defending claims against the firm. Subsequently, Roger specialized in forensic accounting and litigation consulting in Deloitte’s New York Dispute Consulting practice. Immediately prior to joining StoneTurn, Roger was at a boutique litigation consulting and forensic accounting firm. Most notably, Roger was the North American Leader of the Financial Advisory practice at Kroll and the co-practice leader of the Forensic Accounting and Litigation Consulting group at Aon Consulting.

About Michel Hagenaar

Michel Hagenaar is a Certified Public Accountant, Certified in Financial Forensics and a Certified Fraud Examiner. Michel specializes in accounting and forensic investigations, and disputes with complex financial and GAAP issues. With more than 16 years of experience, Michel has provided a wide range of audit, forensic accounting, dispute consulting, litigation support and internal control assessment services to clients in connection with post-transaction disputes, fraud investigations, regulatory inquiries, Sarbanes-Oxley 404 implementations, and various complex litigation matters. Michel has worked across a broad range of industries, including financial institutions, telecommunications, hospitality, retail, wholesale, transportation, pharmaceuticals, manufacturing, food production and distribution, equipment leasing, oil field services, shipping, not-for-profit, government and professional services.

Prior to joining StoneTurn, Michel spent over 11 years in the forensic and litigation services practices at several international professional services firms, including Deloitte, Kroll, and Alvarez & Marsal. During that time, Michel also led the Sarbanes-Oxley/Internal Control service line at another global consulting firm, where he implemented SOX 404 and remediated internal controls at public companies. Michel began his career in the audit practice at PricewaterhouseCoopers. He is fluent in Spanish and Dutch.

About StoneTurn Group

StoneTurn Group is an international intellectual property, forensic accounting, forensic technology, dispute consulting and antifraud, waste and corruption consulting firm. StoneTurn’s practitioners are experienced in providing financial, economic and accounting analysis, forensic technology expertise and lab support, expert witness and forensic investigative services to attorneys, corporations and individuals in a variety of types of matters and industries. StoneTurn was founded on the premise of responsive, high-quality service with appropriate partner “hands on” involvement. The practitioners of StoneTurn bring their accumulated experience to offer solutions to intricate financial and technical problems. By applying their research, analytical skills, interrogatory methods and industry experiences, the practitioners of StoneTurn deliver results efficiently to clients in the resolution of their complex business concerns and disputes.