To hear Oksana Grigorieva's new lawyer tell it ... heck, of course he is!
The actor's estranged ex-girlfriend and mother of his eighth child just left court, where her new attorney flat out called Mel Gibson a "deadbeat dad."
Lisa Bloom, a powerhouse who also represents Michael Lohan (you can bet that keeps her busy), said the embattled actor is behind on child support.
ICE QUEEN: Oksana's allegations are terrifying, but her motives suspect.
Bloom also claimed that Mel's lawyers are "bullying Oksana" by making her sit for three days of depositions, while seeking even more on top of those.
Conversely, Mel hasn't been deposed in the custody case, an ongoing battle on top of Mel's extortion claims and Oksana's claims that he will kill us all.
Oksana's former lawyers were also in court today, asking the judge to make Mel pay $250,000 in legal fees. The judge will take that up November 10.