Could I simply replace that mirror with a normal mirror if she wishes it to be replaced?

I don't know what the Maryland situation is at the moment, but given the lack of fanfare, I'd guess they too have stepped back to wait and see.  

I believe in this way of investing, but simply not seeing the fruits of my labor in terms of returns.  

I hadn't bothered to issue him a lease, since this being NJ it's very difficult to evict someone for other than non-payment, and you cannot simply choose not to renew.

You would simply be selling it and using the proceeds to purchase a new primary residence.  

Yes, if zoning etc lines up you can turn a SFR into 2-4 unit.Most 203k loans that are ACTUALLY CLOSED (& not just talked about, speculated about, or part of home purchase offers that are simply thrown in the trash, etc) are refinances.

Bernanke simply applied a Band-Aid (QE and low rates) and people levered back up.

Simply put it takes a 10,000 hour time investment in any field before you become a stud. 

It’s not just simply lining up the monthly costs side by side to decide.

I'm going to assume they are letting you use your schedule C/E from your other rental for income verification OR you simply make enough otherwise to cover any debt to income ratio needs.