The webpage has them based in Maryland but they aren't listed in the state's business directory.

Golf course is a tough business with dwindling  play .. think the rise of Top golf and pickle ball.. :)Also if you look at federal forest ownership maps you will see that Huge areas are checker boarded with private ownership .

I have called the office number dozens of times, but it always seems to be busy.

In all seriousness, if this is the start of a budding STR business for you, your parents should understand. 

Further, not only did I learn numerous concepts, techniques, strategies, principles, etc that I used in my business career, but I still do so today.  

can handle the PM but you have to work together and run it like a business.

This lender is probably in the residential niche and is trying to get your business for a loan.

Also, I would love to hear from you privately about how things are going for you.

I would greatly appreciate any guidance or advice starting off with this business model.

I don't really need to know much else about someone - if they can't pass this test, why should I believe that they will be able to run a business that will generate cash?