Honestly, I'd sell it.
If you're barely going to break even, you have a strong chance of spending precious time on something that's flowing little, if any, cash. And there's also a strong chance of seeing your small profit margins disappear to expenses, bad tenants, et cetera. You might well fatten the pockets of local handymen, but if you get your relatives in the area to check up on them, they might not appreciate it, as they've got their own lives, too.
On the other hand, it could give you surprisingly little trouble, you could have great tenants, and after seeing a couple decades of small but steady paychecks, you could own the place free and clear.
It's a matter of opinion in the end, but I'm a conservative guy when it comes to business deals, and this seems like it's too close to being an unprofitable pain to me. I'd just get rid of it, bag the cash, and move on. Landlording just one place from afar doesn't seem like much fun.