Charlie Sheen has reportedly been summoned to testify in court in a real estate dispute involving his former mother-in-law.

Moira Fiore, whose daughter is Sheen's ex-wife Brooke Mueller, has filed a lawsuit over allegations she missed out on receiving a commission when the actor purchased a home because it went to his real estate agent, Marty Trugman.

Fiore claims the Wall Street star asked her to find him a property, and she enlisted Trugman when he allegedly promised to hand over 25 per cent of his commission.

She maintains Trugman failed to hand over her earnings from the sale, but he tells he never agreed to split the fee.

Now Sheen is being subpoenaed to testify as part of the proceedings, while Mueller has also been named a key witness.

The former Two And A Half Men star tells Tmz Fiore is "skimming the deal," and if she acquired any cash, it should go to him or his twin sons with Mueller.