Maybe you could ask for therapy that would turn him into a good father. Like they did in the Outcast (TNG) except that instead of changing his sex habits you change his paternal inclination. What's good for the goose is good for the deadbeat father.No money.
What's the point?
The only thing you could sue for is quality time.
Quality time with an asshole who doesn't want to be there?
#### that.
