How do I verify who the real owner is? 

I thought fair market value is the HIGHEST comps in the area.I asked my appraiser why was his appraisal so low and I gave him a couple of comps that I had to show him there were significantly higher comps in the area and he simply said that he knew something was wrong with my comps and that he did not have enough time to verify my them due to time constraints.He appraised my property for $75,000 in an area where land companies wholesale for $100,000+ and solar developers pay $250,000+.

Or maybe look for the true identity of rich dad ;) 

Going to the tankless units helped with keeping the studios cooler in the summer.As a side note, you need to verify that you have a large enough supply line running into your building. 

I have seen a case where an investor purchased several substantially identical SFR properties at one time and had a cost segregation study performed on one and then simply leveraged that single study across all of them - maybe that makes sense.

If you want to hear all the advantages of San Diego RE you can PM me but suffice to say it has historically produced very good returns and this is verifiable fact (anyone can verify this).However, you do not know whether you plan to stay in San Diego. 

First, you get bids and verify licenses.

Is there anything I should do or get from them to verify them as a company before moving forward?

I'm currently reading a couple commercial real estate books (one of which is a textbook) where the author speaks of some of their own experiences (for example, incorrectly verifying all owners of a MF he was trying to purchase thus being unable to sue for breach of contract when they backed out).  

This way you will be able to show the tax schedule to the lender to verify income.