There were diagonal cracks throughout most of the walls in each room, and in the basement one of the exterior walls had like a 1-1 1/2 foot crack in the block starting at the floor and there was a small ammount of water running from that to the middle of the room.

Would the partner's agree to a 60/40 net income split to get parity in after tax income?  

The neighbors fence starts in the ally and runs diagonal straight into the corner of my house.

The EU is going to fail as the Euro was drawing near parity with the Dollar in January after a long slide down from the High in May of 2014.

There is residential diagonally cross the intersection so perhaps that would help.

In which case go over the floor diagonally, or criss cross pattern type thing to help remove and level the floor.

I was thinking the same (i.e. income to rental and purchase pricing vs. non parity, in various cities and enclaves) with perhaps a disproportionate ratio of 'rentals' to home ownership... if that sort of data is tracked, and available online? 

Same for the diagonal cracks.If all the doors and windows fit and close properly, I doubt you have any serious problems, and after twenty years, the house is probably mostly done settling.

Darren:I know of folks who have used these loans to buy vacation properties (which some of them rent out when they are not using them), but no one else who has explicitly purchased a 2-4 unit as exclusively a rental.We used the Canadian LoC because the CAD was at parity with the USD and LoC was at prime (3.0%) a full 2.0% better than the mortgage rate we were quoted.

Diagonal cracks on the walls around windows and doors.