If millenial homeowners can't even change their home's air filters, or snake a toilet, or change the oil in their car, that's guaranteed future business for HVAC companies, plumbers, mechanics, and those places all need a place to conduct business in.The commercial mortgage pricing software I use has somewhere around 50 different asset classes in it.

What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?

I believe this law presents a great opportunity—not only as a sustainable business model but also as a way to help people in need.However, I have no experience in real estate or foreclosure auctions.

MF properties are viewed as businesses, thus often priced as a multiple of annual income potential (like any other business, whether you're selling a donut shop or a tech company).

Firstly, becoming a multifamily agent is a fantastic way to learn the business first hand while making some cash in the process.

Collateralized Private Loan – Some private money lenders (PMLs) may allow you to pledge one of your properties as collateral for a short-term loan. 4.

I use Coterie for business liability. 

You are operating a business.

A rider allowing for using your owner-occupied property as a short-term rental for a specific/limited amount of time is very different than an investment property being used as a short or long term rental 100% of the time.Also, telling your home insurance company that you STR your home occasionally does not give you extra coverage for those types of risks, it simply means if your renter burns your home down the insurance company isn't going to immediately deny your claim. 

The benefit is that you can take control of the rental while still allowing them to retrieve their belongings.