I am in the process of fixing up an in-law unit built by the previous owner. Unfortunately, the roof wasn't well constructed. It basically consists of 2x4's running off a ledger attached to the adjacent garage which are then notched and resting on the top plate of the in-law unit (see pictures). Because the wood was notched, it has split from the roof load, so basically I think I have the equivalent 2x2's supporting the roof. Is there any remedy for this short of ripping off the roof and starting over? Maybe steel plates sistered to the 2x4's? You can see from the picture that I attempted a fix with some straps and joists hangers which I'm not that confident with.