You will find it in your state landlord tenant regulations on line.

Five headwinds that California coastal real estate is facing which never existed in any previous market: (1) Baby Boom retirement is creating more sellers than buyers. (2) The Fed's unprecedented regulation of interest rates through money printing and Treasury note buying is winding down. 

@Long Vang - Depends entirely on the regulations of where the property is located. 

If the money is used for consumer purpose there are a boat load of disclosures, licenses and regulations you need to comply with.Also, what is the value of the collateral, if should be substantially more than the loan amount or you could become partially unsecured both as a practical matter and subject to cram down or lien stripping if borrower decides to file BK.Also, if you don't have a deed of trust to go with this note it's unsecured, it then becomes expensive toilet paper.Also, you should get the deed of trust insured with a ALTA lenders policy.Also, this may be a personal thing but I like monthly payments, not everything at the end. 

My 2 cents: TRY TO TRUST that the bank's loan officers are abiding by their rules/regulations, and abiding by the contract.

Every state has different sub metering regulations and you need to get intimately familiar with them.  

Next thing you'll want to do after compiling that data is to widdle down each region based on regulations, I feel like areas are becoming more advocates for vacation rentals because towns are now starting to realize the amount of money they bring into their towns, but there are still some places that are very strict on them.

Unfortunately, these things tend to fester in an environment like we have now:   markets on upswing, lots of demand for contractor services from both investors and home owners who are getting ready to sell their properties. 

@Craig Jones is local to the area and may be able to chime in about those regulations.

The reason you likely haven't received any responses to your post is because the activities of a "non-licensed assistant" must be VERY closely regulated by the licensed member under which you would get MLS access.