I looked into Ring and Simpli Safe but they don't seem to have products built for a multi-unit application.

If that happened in Cali, title would not accept the deed as valid. 

You have to have a contractor you can trust, a property inspector that can go over the property with a fine tooth comb if you're not familiar with all of the aspects of buying a used home, a lender/broker that has the products and a property manager if you're not experienced or if you have a real job. 

A lot of forum members are very knowledgeable in their respective fields related to real estate investing, whether that is real estate sales, wholesaling, flipping, rentals, lending, self-directed IRA and Solo 401k investing, or tax and legal guidance.Discounts on some products and services are offered to BP members: https://www.biggerpockets.com/perks/proIf you haven’t been to it already, you might want to check out the BP blog: https://www.biggerpockets.com/blog/

--A number of conventional (non-portfolio) loans/products just disappeared, or got way more expensive. 

This whole operation takes a crap-ton of time per location, and every time I do it I start to wonder if "simply" ripping out all the wiring in the entire house wouldn't be just as fast, when momentum and final product is factored.

Sounds like it is a valid point. 

Sincerely, Sean Banilivy Based upon your list I am guessing you're looking for information so you can eventually invest in some type of turnkey market and or product. 

I told him I had experience in filmmaking and I owned a production company.

@Austin LargusaYou may look at commercial mortgage products or some favor of portfolio financing.