Quote Originally Posted by Beirut
I think you're screwed. If he's a deadbeat - he's a deadbeat. Nothing you can do about it except learn to deal with it. You just have to differentiate between your sister and him. Be nice to her, be useless with him.

As for pounding him; you can't lay a hand on him as long as he doesn't lay a hand on anyone in your family first. You might win the battle but you'd lose the war.
True be nice to her will help in the long run.

Quote Originally Posted by InsaneApache
This is good advice.

You won't like mine though.

I assume that all the parties concerned are over the age of majority? Yes? In that case, mother, sister or whatever are adults and made desicions as adults. In a nutshell, it has nowt to do with you. I see where you're at emotionally but if it were me I'd wind me neck in and mind me own business. Let it be.
To add tell your Mom no more "loans". However, a grandchild is coming and she will want to be there and help and with a bum for a son-in-law money can't be trusted.
Buy supplies the baby needs and never give cash. That way she is there supporting her daughter and grandchild.