Without a complete picture any advice is incomplete at best, and down right harmful at worse.

We don’t know any PMCs to recommend in the area mentioned, but since selecting the wrong PMC is usually more harmful than selecting a bad tenant, you might want to read our series about “How to Screen a PMC Better than a Tenant”:https://www.biggerpockets.com/member-blogs/3094/91877-how-to-screen-a-pmc-better-than-a-tenant-part-1-services-and-processesWe recommend you get management contracts from several PMCs and compare the services they cover and, more importantly, what they each DO NOT cover.

Get into the habit of not spending foolishly and it pays dividends.

We don’t know any PMCs to recommend in the Stockton, CA area mentioned, but since selecting the wrong PMC is usually more harmful than selecting a bad tenant, you might want to read our series about “How to Screen a PMC Better than a Tenant”:https://www.biggerpockets.com/member-blogs/3094/91877-how-to-screen-a-pmc-better-than-a-tenant-part-1-services-and-processesWe recommend you get management contracts from several PMCs and compare the services they cover and, more importantly, what they each DO NOT cover.

As a contractor I do not pass my discount on to the customer , my discount is something I negotiated with the supplier based on my buying and paying habits .

If you got a good deal on those lots then there is no harm in just waiting it out, the market will shift again eventually.

Even if I had no concern about him as a person, it's still concerning that a tenant could possibly have come to harm in my property.  

Not conventionally, but you could do a no seasoning loan that may save you some money if the property is habitable.  30 year amortization is readily available and they're usually done with a 5 year ARM.Otherwise, you'll have to wait at least 6 months for most DSCR loans or conventional. 

But it gives you a cap if you want it and since it is not tied to you or to any of your accounts, if it gets stolen, there is no harm done to you.

Aloha,Unless you actually have a place to store them, I would say they would need to store them, wrapped in plastic or a tarp, out of harms way and re-install them at move out so you can confirm condition at that time.