McMahon & Associates Private Investigators
Private Detectives

Private Investigators in Fort Lauderdale, Broward County

Our Investigaton and Detective Services

MCMAHON & ASSOCIATES is a full service Detective Agency. Our services include Civil, Criminal, Corporate, insurance and general investigations.  Insurance related investigations, surveillance, asset searches, background checks on individuals and corporate investigations are among the many services that we provide.

Rory McMahon is a former U.S. Probation and Parole Officer in the Southern District of New York and the Southern District of Florida. He supervised organized crime figures in both jurisdictions. Rory has been a licensed private investigator in Florida since October 1990. He is a Certified Legal Investigator (CLI), a distinction held by fewer than seventy-five investigators worldwide. He is also a Board-Certified Criminal Defense Investigator (CCDI), and Certified Fraud Examiner (CFE).

Rory is the author of two textbooks about investigation, Fraud Investigations A Textbook on How to Conduct White Collar Crime and Financial Fraud Investigations, 3rd Edition (2018), and, Practical Handbook for Professional Investigators, 3rd Edition (2013). He is the owner of McMahon and Associates Detective Division, a very successful private investigation agency located in Ft. Lauderdale, Florida. He was a founding father of the Florida Association of Licensed Investigators (FALI), and has served on the boards of FALI, the South Florida Investigators Assoc. (SFIA), and the National Association of Legal Investigators (NALI).

He was the Department Chair of the Private Investigation Services Program at City College from 1992 thru 1997. He presided over the growth of the program from one to four campuses. He authored most of the textbooks used to teach the classes while serving as an Associate Professor.

In May 2009 was named the FCI of the year at the FALI conference in Orlando, FL. During the past 12 months, Rory has completely revised the PI program with new material, new textbooks, and a powerful new direction. The program consists of ten core courses, which are well suited to certificate or degree and formatted for traditional classroom or distance learning. In 2022 he is now offering the Programs online. All materials for the course were approved for U.S. copyright in July 2004.

McMahon & Associates Detective Division was established and fully licensed by the State of Florida in 1991. This professional private investigative agency has always maintained its headquarters in Fort Lauderdale, Florida, which is centrally located in Broward County in close proximity to both Miami-Dade and Palm Beach Counties. Although we are located in Florida, we are available to conduct investigations anywhere within and outside the United States.

The Education Component of McMahon & Associates -  IEC Online Investigation Training (
has created an online training platform to offer 2 specific areas of study:
1. Classes for those interested in courses in Professional Investigation or those seeking CEU’s.
2. Certificate in Professional Investigation was designed to offer enrolled students the knowledge and skills needed to become an entry level Intern in the field of Professional Investigation. This is the same 100+ hour program, created by Investigator/Author Rory J McMahon and being offered in Colleges around the U.S. The classes are based upon his best-selling books; as well as several books written by Professional Investigators recognized as the premier Investigators working in their fields.



1451 W. Cypress Creek Road, Suite 300, Ft. Lauderdale, FL 33309
Local: 954 452-3082
FAX (954)452-5258

© R.J. McMahon & Associates All Rights Reserved