It's a bit more regulated here in Canada, so not so much experience yet.

Different cities have different rental regulations (rental license, inspections, etc), and also if there's an HOA, they have their own restrictions but nothing currently statewide.  

Take a look at city and county regulations sometimes they require a property manager if you're more than x number of miles away.

Especially considering it was a forced shutdown that took down the economy a bit currently and not one as a result of poor regulations or poor fundamentals of businesses. 

Obviously, there is much more regulation.

Also, a note is also a security subject to SEC regulations.

I'll start by saying this as a disclaimer:  a real estate agents opinion is NOT an appraisal, and a reputable (and regulated) bank or lender will require an appraisal. 

I believe mobile homes are regulated as consumer goods and not real property. 

I bet the bank will regulate the appraisal (since this is a point of extreme liability for them they typically use an appraisal clearing house service that randomizes the selection of the appraisal from a certain pool of appraisers, so the lender needs/wants to use that clearinghouse service). 

Title 3 of the JOBS Act or "Regulation Crowdfunding" (Reg CF) went into effect 4 years ago on May 16th, 2016, yet is still not being adopted for use in real estate investing.