DSCR.......check it out

You need to check with the PM company to see what they allow.I'd not do this because:You have to wait your turn for a booking.You  are at their mercy as far as rules and fees.Regime fees and special assessments can kill your net income.A SF beach house will make more money without the HOA fees.Condos are a dime a dozen in Myrtle Beach so you can rent one cheap due to all the competition. 

You can also check their reviews online at Google, Facebook, or Yelp.

Check out some CRM's that provide you with a phone number to use. 

Do you recommend a background check and credit score check site ?

I would check with a credit specialist as well as your loan officer.

Firstly, understand the lay of the land by checking local zoning regulations, assessing available utilities, and conducting thorough market research.

In general, I would say in a space where you are thinking of writing checks for hundreds of thousands of dollars to get deals, $6k/yr is not that much. 

Firstly that check is heavy 😂. 

For financing, check out local banks, credit unions, and online lenders for investment property loans.Considering an LLC is wise for asset protection.