Could it be considered piercing the corporate veil if the mortgage for the property is in your personal name but the deed is in the name of the LLC? 

Id have a lawyer on hand, this person seems like they will escalate issues once you notify them you aren't renewing their lease.  

I'm not a professional Tax person.

I personally like Alabama and Tennessee a lot, depending on what specific area you're looking at.Look for Class B or C properties in stable rental markets, particularly single-family homes or duplexes.

Your personal history with GSE's is notified across all GSE loans, they communicate.

Quote from @Jeff Sanders: Personally coming from an agent/investor in CA, I always get a quote from a broker of mine and make sure I am knowledgeable with the fees/costs.

Find someone where there is a personal connection and at some point your relationship now or later can benefit the mentor.

I personally think there is just not enough comps yet to show the true value of ADU's.

Private money and personal funds.

I personally really like the suburbs, and that's where I have most of my rental properties.