Hey there mcerra,
That's a tough one you got there. If I may suggest you separate it into two separate issues.
1- Her drinking. She's not going to get a job if she's drunk and asleep. Ever.
2- The rent. If she were _not_ your mom, but just a roomate, what would you do?
I think a great place to find out how to deal with a relative who's addicted to alcohol is right next door in the Friends and Family forum.
http://soberrecovery.com/forums/frie...ly-alcoholics/
Browse thru the "sticky" post at the top, read some of the posts, then ask the experts how they would deal with a similar situation. While you're doing that, a few meetings of al-anon might be helpful too. They did me worlds of good.
Mike