The more identical the sold properties are to the subject property, the better. 

In my experience 99.9% of home buyers prefer buying a home with no electric bill as opposed to an identical home with an electric bill, so I believe solar differentiates the home from close comps at the very least and increases salability.

The LLC is also useful to hide the identity of the owner.

Does an LLC protect against mortgage fraud for REIs interested in FHA or VA loans requiring borrowers to reside in one of the rental properties assuming that it is a duplex?

In my research it seems like a mixed signal of you can "get away with it" to this would be legit loan fraud with potential foreclosures if the loan is pulled and jail time. 

The maximum penalty for mortgage fraud is 30 years in prison. 

That lawsuit is a claim for fraud, and that’s what fraud typically is...a misunderstanding and someone being “injured” and wanting to hold the other responsible for it.

Either you tell the lender it is for a primary residence and you have to risk mortgage fraud by using it for investment out of the block. 

You can't even prove their identity.  

Remote notarization is fairly new in some states, and I'm a bit concerned that suddenly introducing it like this could lead to a lot of fraud and just headaches as people learn how to use the technology.I know a lot of escrow offices and title companies are still open but aren't allowing anyone but employees inside, or are working from home.I can't say that I've done "curbside" closings yet, but 2 days ago I did a 100+ page refinance outdoors using a clipboard.