Some don't like the idea of a 2nd position lien that is very small and very high on interest rate. 

I expressed my objection to the rate.

Everyone’s got the same problem: STR oversaturationPrices are high in most markets and if/when you do buy, your competition is fierce thus pushing down nightly rates and occupancy rates in almost every worthwhile marketGood luck fixing that! 

Keep that focus, but as you learn things will change...

If I accept the suggested pricing opportunities it could drop my rates by $100 / night in some cases. 

The rates will be lower and will allow you to maximize profits.

Nothing changes the fact that using leverage increases risk, not decreases risk.  

This allows entry without a key, and allows me to change the lock as needed if I don't want someone in there.As an agent, I provide contacts to my clients who will do these things, and occasionally I will do favors for past clients who need someone to open the door or quickly supervise an appointment; of course not all agents will do this or for free.  

I don't change my pictures that often.

Come up with terms (Down Payment, Interest Rate, and Amortization Schedule) such as a 5% Down Payment, a 6% Interest Rate, and 30 Year Amortization Schedule.