Does he do any type of goal setting therapy or behavior?

Maybe let him know that you think it's a good idea but just not at the present moment because his job is a temp job. My husband's uncle is having this problem. He is living with us now, trying to get back on his feet. He had a job and it was going well, he was almost to his 90 days, but he was a temp and they decided the job ended and not keep him on. Now he's back to square one and having trouble finding another job.

Problem is, we're getting ready to move and he can't come along. So, it's all very tense at home....

So, anyway, maybe he can set a goal. Like if he holds his job for 6 months, start looking. In the mean-time keep saving money for the move. Since his credit is bad maybe try to build up 2-3 months rent to offer up front. (That's what we're doing.)

I think if you show you support the idea, but just want him to wait for a bit that might help. Also, maybe it will give him incentive to hold his job longer.