Charlie Sheen was summoned to testify in the case involving his former mother-in-law's real estate dispute.

Moira Fiore, mother of Sheen's ex-wife Brooke Mueller, filed a lawsuit over allegations that she missed out on receiving a commission when Sheen purchased a home because the money went instead to his real estate agent, Marty Trugman.

The 47-year-old "Anger Management" actor was not subpoenaed by Mueller's mom but by Trugman, according to court documents obtained by TMZ.

Fiore claimed Sheen asked her to find a property for him. She then enlisted Trugman to help her and he allegedly promised to give her 25 percent of his commission for sealing the deal. She maintained that Trugman failed to hand over her earnings from the sale.

Trugman said that he never agreed to split his commission with Fiore and that she does not deserve the money. Sheen told the celebrity gossip site that Fiore is "skimming the deal," and that if she gets any money out of the court case it should go to him or his children with Mueller: 3-year-old twins Bob and Max.

TMZ also reported that Mueller was named a key witness in the court case.

Mueller has spent recent months battling a drug addiction and spent a short time at a rehab center. While seeking treatment, Mueller's children were taken care of by Sheen's ex-wife, Denise Richards, according to The Daily Mail. Richards shares two daughters with Sheen: 7-year-old Lola and 8-year-old Sam.

Mueller has reportedly been in and out of rehab around 20 times.

Sheen was married three times. His first marriage to Donna Peele in 1995 ended a year later. Sheen was then married to Richards from 2002 to 2006. His marriage to Mueller began in 2008 and the divorce was finalized in May 2011.