One thing I think is important.. is to realize there is more than one kind of mortgage debt.. its not all owner occ debt. which everyone posting above is talking about and the most risky if not done right.Commercial debt is a different animal while you have different borrowers the red tape and how you treat a borrower is far different and more investor friendly than owner occ debt.. you still have risk to BK  and waste of the property.

Typically, these animals come from a program that should be very easy for you to verify.

A lot of local tenants claim to have emotional support animals (ESA).  

If the owner sees a trend, or is just animate about upping the 2% - they make an offer of renewal and the tenant has two choices. 

Hard to work well in every market too.Seller Financing and Free and Clear Houses/No Equity Houses -is a different animal.

I am being honest with you when I say that DM is an unpredictable animal.

Really a VERY different animal from what most RE investors go after.  

I like animals in general.

Your market in Indiana may be a completely differently animal though. 

MHP is a very different animal than any other type of RE asset class so don't fall into the trap of thinking you can handle it since you have other rental properties.