I would verify their identity at a minimum - like you said getting copies of their licenses. 

Solar makes living in a home cheaper, a pool has the opposite affect so it's not apples to apples.The math is simple with solar, if there are 2 identical homes sitting next to each other and one has a solar system like I have (8kw) that cost me 19.5k after tax credits, my house is worth 19.5k more, minimum.  

Of course kicking in a door is fast too and that is preferable to most thieves who are lazy.There is a rating system for security and the Kwickset are ANSI Grade 1.

Pretty much identical to my story 5 years ago when i got into it at 19.

In fact, there was a nearly identical post 2 days ago...https://www.biggerpockets.com/...

The mechanics of a personal vs business savings account will be nearly identical meaning they work the same and the interest will be roughly the same. 

In March of 2022, an identical house like mines sold for $875k in same sub division.

I've sold two identical properties side by side at the same time, one was tenant occupied, one I waited for the tenant to leave, spruce it up and then listed for sale.

Here are two scenarios to make my point, assuming I have $100k (easy number, over simplified to make my point) to invest:Scenario 1:  I could buy 1 $100k property in cash that rents for $1000/mo - cash flow is ~$500 (~50% rule)Lets assume that property appreciates (long term average) of 3% yoy - total ROI is $500x12=$6000+$3000 appreciation = 9% total ROINow,Scenario 2:  I could buy identical properties with 20% down using the same $100k, but now I have ~$400 mortgage, cash flow is now $100 per property.Assuming the same long term appreciation of 3% yoy - total ROI is now $100x5x12 = $6000+$3000x5 = $21000 or 21% total ROIWhile the example is grossly oversimplified, it highlights the value of leverage because you have more appreciating assets that are growing year over year. 

I plan on talking to an attorney and folks in this space (there was a conversion right down the street from me to an identical building 7 years back) but thought I'd ping my BPers first.