Denise Richards has been branded "greedy" by Charlie Sheen's lawyer.

Mr. Singer said: "I've been representing Charlie for more than 20 years.

"Patty [Glaser] is just the latest in a long string of lawyers who Denise has hired to squeeze as much money as she can out of Charlie. This motion has nothing do with their children. Denise is simply being greedy.

"She isn't satisfied receiving $55,000 per month tax free - more than what 99% of the people in the world make. Now, she's asking Charlie to pay her more money so she can buy a second home because one $7 million home isn't enough for her."

The lawyer spoke out after Denise's attorney, Patty Glaser, said the actress had sought to take action to protect her kids from their father's "erratic lifestyle".

Responding to Martin previously accusing Denise of making a "desperate attempt" to get money from Charlie, Ms. Glaser said:

"Not only are Mr. Singer's comments about Ms. Richards blatantly inaccurate, they're also inappropriate, and unprofessional.

"Ms. Richards is doing everything she can to protect her children from the fallout of Mr. Sheen's erratic lifestyle and its enormously negative impact on their children."

In response, Mr. Singer said: "I'm not going to stoop to Patty Glaser's level by attacking her personally, though it's ironic that she would comment on Charlie's lifestyle considering that it was her client who wanted to marry him.

"And, as a result of that marriage, Denise became a very rich woman."

Denise - who also has a four-year-old adopted daughter, Eloise - has also hit out at Charlie's lawyer for not putting her kids first.

She tweeted: "Marty Singer u being the trustee should support a mom fighting to keep it intact for the children. It's their money, not mine or your client.(sic)"