Typically existing work is grandfathered in when new work is done.There are very few circumstances where a building must be brought fully into compliance with the very latest codes. 

I can assure you that a contractor would've just scabbed on a 2x to these rotten floor joists and covered it up with plywood. 

What I say is I understand we talked and came to a understanding (which should be that he pays in three days) I legally must give you this 3 day pay or quit notice in compliance with state law. 

Check zoning compliance.

You don't see "TENANT FROM HEAVEN #1" but let me assure you that all of the tenants I have placed have been a dream!

Seems like this would provide adequate protection and assurance to both parties. 

@Pete Mathias Wyoming is probably where I would suggest for cheaper housing in relation to the rest of Grand Rapids, and also rental compliance is much easier than City of Grand Rapids. 

If a current multifamily all residential two story 8 unit building is in business B1-2 zoning, where only residential usage is allowed on the second floor, does the certificate of occupancy show that its usage is grandfathered in and is in compliance with the zoning law?

You also must remember that while in the beginning transaction might be structured in compliance with the rules there is always likelihood of it leading to prohibited transaction in the future because of disqualified person's involvement.Once you have your personal funds and IRA funds in the same deal you are now setting yourself a trap with the IRA.

And with city inspection schedules and increasing code compliance, the scope of the rehab is continually growing.