If you're in a ditch with your Gatlinburg-area vacation rental, I've been there. 

I would ditch the idea of a sleeper sofa in one of the bedrooms unless it is a very small room.

Almost the same, I ditched guesty and switched tohttps://hostify.com/

The issue will hopefully be cleared up before you want to sell, but you're taking on the risk that it won't be.For these reason, I'd pursue the ADU, maybe pursue the addition, and ditch the JADU idea.

You need to seriously consider ditching this person and replacing them with a pro!

In my opinion, Airbnb is trying to offer as PMS type functions as they can and be as user friendly as they can so people will ditch the PMS and OTA and only list on Airbnb. 

Ditch any kind of freshener and get to the real problem, like @Collin H. said.

However after all the work thats required which includes landscape, parking lot, fencing lighting and interior/exterior work, it looks like the presumed cost of remodeling it will be double that, although Im not positive (still taking bids).Ive priced a comparable property in our area which has similar square footage and lot size and they seem to be going between $700-800k, and so my question is: based on a higher than expected construction cost which is necessary to finish our project, one which will exceed the amount of money of what a similar property goes for in our neighbrhood, should I continue with this project, or an alternative plan would be to simply beautify it for approximately 100-150k and ditch the plans, and flip it instead for approximately 700-800k now that its zoned commercial.My fear is that if I do invest the moneys to finish the project over the budget I initially priced it for, and the business doesnt take off, I would initially lose money on this investment.Thank you for taking the time reading this.

It seems he has a ROW that encompasses all the usable land on this 1 acre parcel as it eventually runs into a drainage ditch h which has been confirmed by a surveyor.

Unless there's a need for a sofa, I'd ditch that and get a real bed.