I once rented a 5bed/3bath in two days, just a week before Christmas when the ground was covered with snow and ice.Sitting vacant in the winter increases the risk of frozen pipes or other expensive problems.

If you are looking for a growing market and area that you could get more "bang for your buck" with less risk.

I have never heard of any NAR agreement for agents to be involved with notes, that is far from the truth.

Even someone like Brandon Turner is less and less involved in his syndications, so there's an increased risk that his syndications will not be run with his original values in place.

It would be smart to do a full lease audit, estoppels issued, and tenant interviews.And if you are buying cash, there is nothing mandatory, since it is your money at risk. but again, physical condition inspections, understanding of tenants (they are a great source of information about issues with the property that the landlord may not know or may not disclose), surveys to understand accurate property lines, etc.

As I mentioned above, the risk of being sued, found guilty, and fined more than your insurance will cover is almost non-existent. 

Like you mentioned, there is a risk for a mid term stay entering your top season.

Quote from @Steven Stanimirovic: Hi Rich,The prepayment penalties you’ve encountered are quite standard with DSCR loans, as lenders often structure these penalties (commonly called "step-down prepayment penalties") to offset the risk of early loan payoff.

Many people do this and as long as they keep paying the lender nothing happens, but just understand your risks as they may be able to call the loan for whatever reason.

That adds a lot of expense if you can even do it.All this I guess depends on how much risk you want to take or not take or can afford to take.