My wife and I(no kids) are currently renting a place a 2 bedroom condo with 2 underground parking for $1430 and I recently I have been thinking of buying a house cause I want to get things rollings a bit.

It's not like a survey easement or something that can come back and cause an issue in the future.Good luck on your deal!

It's the norm for Detroit where PM's floss you cause you're OOS

This caused a lot of proceeds issues with refinances, not issues with borrowers/properties qualifying.

What is the best to accomplish this without causing the lender to accelerate the note. 

The end of a lease is not considered good cause so landlords can't just choose not to renew.  

The fact that the park is abandoned is also a cause for concern.

The issue is they may try to trash the place if you have them vacate - depending on how much of a renovation you were planning to do that may cause more issues for you.  

On the other hand, if it's only happening in one spot under a missing piece of gutter (for example), then it was probably just an ice lens that caused it.

There was a ton of mold issues as well and since the house was well known to the town inspectors they extremely vigilant on the work we were doing causing some delays.