Oksana's lawyer, Daniel Horowitz, filed a declaration in the search warrant motion, stating, "Mel Gibson received a substantial financial benefit from the [mediation] agreement."

So how did Horowitz reach his conclusion? He says the actual value of the mediation deal for Oksana was somewhere between $1.2 and $2 million -- not $15 million.

And, Horowitz says, Mel got a sweet financial deal by only giving Lucia $10 million under the mediation deal. Horowitz says Lucia was actually entitled to 1/8 of Mel Gibson's trust -- money she would share with Mel's other 7 children. But under the mediation, Oksana gave up Lucia's rights under the trust, which Horowitz says would have given her way more money than the $10 mil.

So his point -- How can you be an extortion victim when you make money?