Experienced Leadership You Can Trust
David S. Cantor, CPA/ABV, CDFA®
David is the founder and partner of Cantor Forensic & Divorce Accounting, PLLC and has practiced exclusively in family law accounting since 1990. As the only CPA/ABV, CDFA® in Arizona dedicated 100% to family law accounting, David brings unmatched focus, credibility, and depth of experience to every matter he handles.
Over his career, David has worked on thousands of family law cases involving complex financial issues, including business valuations, income determination, and high-net-worth disputes. He has served as an expert witness more than 275 times and also acts as a financial neutral in collaborative and non-litigated divorce proceedings, providing clear, objective guidance to attorneys and clients alike. Download CV
Martin E. Hellmer, CPA
Martin joined Cantor Forensic & Divorce Accounting, PLLC as a partner in January 2026, bringing more than 20 years of experience in complex financial investigations and civil litigation matters. As a former FBI Special Agent and Certified Public Accountant, Martin offers a unique combination of investigative expertise and financial analysis to support high-stakes disputes.
Martin specializes in civil litigation support, financial fraud investigations, asset and debt searches, and white-collar matters. His background allows him to deliver independent, court-ready analysis and clear insight in even the most complex cases, helping attorneys and clients uncover facts, assess risk, and move forward with confidence. Download CV
Meet Our Team
Michelle Mann
Michelle Mann
Michelle Mann
Office Manager
Coming Soon
Michelle Mann
Michelle Mann
Coming Soon
Michelle Mann
Coming Soon
Family Law, Civil Litigation & Divorce Accounting Services
Family Law
Collaborative/Financial Neutral Services
Collaborative/Financial Neutral Services
With more than 30 years of experience in family law accounting, we bring a steady, knowledgeable approach to even the most complex divorce matters. We work closely with clients and attorneys to analyze financial records, uncover relevant details, and present clear, accurate information that supports informed decision-making. Our work is guided by integrity, objectivity, and a deep understanding of the financial and emotional challenges that often accompany family law cases.
Collaborative/Financial Neutral Services
Collaborative/Financial Neutral Services
Collaborative/Financial Neutral Services
We provide comprehensive support for collaborative divorce and mediation by serving as the financial neutral for all parties involved. Our role is to ensure transparency, clarity, and fairness by organizing financial information, explaining options, and modeling potential outcomes. By offering unbiased analysis and clear financial insight, we help reduce conflict, streamline negotiations, and support resolutions that avoid unnecessary court involvement.
Expert Witness
Collaborative/Financial Neutral Services
When a divorce or family law matter proceeds to court, we are available to serve as an expert witness accountant. We prepare thorough, court-ready analyses and provide clear, credible testimony that helps judges and attorneys understand complex financial issues. Our experience in litigation settings ensures that our opinions are well-supported, objective, and presented in a manner that withstands scrutiny.
Divorce Law & Related Financial Issues
Applying divorce and family law principles to real-world financial situations requires both legal awareness and accounting expertise. We assist clients and attorneys by analyzing how case law, statutes, and financial standards impact the unique circumstances of each case. As matters evolve, we provide ongoing insight to help anticipate challenges, evaluate strategies, and support sound financial decisions throughout the divorce process.
Civil Litigation Services
Our Civil Litigation Services provide clear, defensible financial analysis to support complex legal matters across a wide range of disputes. We offer experienced support for civil litigation cases, white collar crime defense, False Claims Act analyses, and healthcare reimbursement matters, helping attorneys build stronger, well-supported cases.
Referral to Discreet Private Investigations
Through Martin Hellmer’s company, Blue Line Agency, he is able to deliver confidential, thorough investigations designed to uncover facts and protect your interests. He supports business and personal disputes, asset and debt searches, complex financial fraud schemes, and employee malfeasance with accuracy, discretion, and attention to detail.
