If yes, do you utilize the REIA to maintain your connections?

The facility maintains the building and the appliances.

We supply the appliances and we maintain the appliances.

If you OF just the home you won't be able to sell as high and if there is well or septic you will be responsible to maintain it.2.

And, as @Suzanne Player suggested, will he entertain a 15 year balloon amortized over 30 years, which would maintain the $600+ savings per month from my initial reply above?

Call property managers in the are, most are also realtors, and ask if they have any investors looking to sell.Lastly, you have a decent down payment, see if the seller will consider offering seller financing to spread out their gains and maintain a monthly cash flow. 

I think that a well maintained and managed STR near Disney can be a good long term investment as I believe that there will be demand for family vacations even during economic downturn, but you need to have the funds to maintain the property independent of the cash flows from the rentals unless your house is brand new.As for the option of selling the house, I recommend you talk with @Shawn McCormick, he’s a realtor with a lot of experience with STR market in Orlando.

If you are going to scale, QBO is a good choice especially if you are looking to maintain a balance sheet. 

I helped many Buyers over the last several years get very good interest rates with the VA eligibility and you may want to maintain those loan terms and monthly mortgage payments.

I am really much more interested in repairing, maintaining and managing the property, trying to sell other people on it is not really my skill set.