You will just be his punching bag.  

She lied to our faces and told us she was taking care of it for a friend, but couldn't explain the dog house in the backyard and the 20 pound bag of dog food in the kitchen.

I then mixed up two bags of floor leveler ($26 a bag, years ago) and let it run all over the low spot until it was the height of the 1x6.

Just want to make sure I'm not stuck holding the bag.

If you are game for it then go for it... it's just gonna be a lot of headaches until you find a good team or pay someone enough to turn the headaches into theirs.Whatch what happens when a local city employee sees you're an "out of state" investor while you're doing improvements and send code enforcement all over your californian ***-ets... been there done that.That being said, after a couple years of sweaty nights, we've some what stablized the out of state money pit and it does "cash flow" at this timeRemember property managers LOVE out of state investors... they think we're money bag passive investors.

For example, I had a tenant with them and they needed to bag all clothes, wash them all (heat from dryer kills them while cold doesn't) and move all furniture to center of room in order to spray along baseboards.

I'd just say if you go, I go so then we'd both be up a creek and your just as able to leave him holding the bag, so HE gets that your ready to walk out also, so you'll both be hit for breach of lease.He'd probably not expect that,,and would agree to the  fee to get the lease resolved and you'd be free to either move or continue on  your own and if new roommate is possible secure that in the future.

Hi Shawn,This is a tricky situation, especially if the bag came from outside which it sounds like it did.

dime bags blow around in the yard.. 

Most contractors I have used have left bags of garbage for me, or debris all over the floor.