While it was done for decades, only now do they split these hairs to crack down on the investor stratigies.

There is currently a crackdown on owner occ vs rentals per a Broker friend of mine.  

Regulatory crackdown made them all but extinct, but it's certainly not a terrible idea for people who are in the same situation. 

I am running into a brick wall as this is what the owner of record shows:US Bank National Association, trustee for structured asset investment loan trust mortgage pass - through certificates, series 2006 - BNC3 crackdown, ocwen Loan Servicing LLC, attorney in fact

In some states it's illegal and they do crack down on it. 

PA has really started to crack down on companies that have this as a business model.

Either all pet rules will be repealed or they’ll have to crack down on the fake Emotional support animals.

I am  trying to crack down on charging tenants for damages they cause (or allow).

This sounds like a good strategy, however, because of the Dodd Frank laws that were passed a few years ago in order to crack down on predatory lending, they put some parameters and limitations around creating loans for primary residences.

If the counties did actually try to crack down on this there would be massive homelessness and community backlash.