It sounds like, at best, he’s got a bad case of inertia, and at worst, depression, debilitating anxiety or sagging self-esteem.
Here’s a cognitive-behavioral course via newspaper. He must break down the job hunt into smaller steps. (“Buy and install new printer cartridge” is a legitimate goal.) He does one job-search-oriented action each day to uphold his part of the bargain. And, in the meantime, he can get better acquainted with what his barriers are: What thoughts are getting in the way of his progress? Does his mood dip, paralyzing him from action?
Also worthy of discussion: Are both of you on the same page about goals for your family?
First, ditch the guilt. Your new neighbor doesn’t mesh with what you want in a friendship – or even a backyard barbecue guest – so you’re expected to be civil, but nothing more.
Communicate as needed about your children, but don’t feel the need to ask any additional questions. Say hello when he speaks to you, but don’t ask for a breakdown of his weekend.
Don’t extend any family invitations, and politely decline any that he offers. (You’ve got out-of-town guests spending the weekend, bowling just isn’t your thing, you have tuba practice – heck, life makes enough excuses even for people we want to see!)