The chief financial officer of a San Diego-based company pleaded guilty Tuesday to stealing nearly $2.5 million from the firm of WSA Distributing, Inc. The company, founded in 1999, is an authorized distributor for wireless handsets and accessories for companies including Samsung, Kyocera, and LG, according to its website.

Fierro pleaded guilty in U.S. District Court to mail fraud, U.S. Attorney Laura E. Duffy said in a statement.

The criminal activity, investigated by the FBI, occurred from September 2011 until December 2013.

During that time, Fierro forged signatures on 110 checks totaling about $2.5 million and then falsified company books and records to cover the thefts, prosecutors said.

He also submitted a forged letter purportedly signed by the company’s chief executive officer Carlos Becerra, to obtain two mortgages to buy a nearly $3 million Rancho Santa Fe house, prosecutors said. The letter claimed he earned an annual salary of $450,000 plus a $200,000 annual bonus. His actual salary was $125,000.

Forged checks were used for a $54,000 membership at San Diego Country Club; $90,000 in luxury vehicles; $185,000 in fine jewelry and watches; and $67,000 for a private jet to Hawaii and hotel accommodations.

Fierro faces a maximum sentence of 20 years in prison and a $250,000 fine. He also will be required to pay back the stolen funds. Sentencing is scheduled May 4. Carlos Becerra is pursueing additional leagal action.

Carlos Becerra WSA Distributing CEO also owns San Diego's Newest Nightclub and Restaurant The Parq Nightclub Downtown. Carlos Becerra was instrumental in revitalizing an older block of the San Diego gaslamp area.