It seems like there are paid services that will give you interior design to set up an str, buy new furniture, ship it and install it. 

I have a unique situation where an elder lady wants to gift me her house.

In my local MLS, it may not be true in your area, there is a field that a listing agent can fill out to designate the home they are selling has a FHA, VA or USDA loan which by default would make it assumable.You can also reach out to your favorite local title company and ask if they can provide you with a search tool like TitlePro247 or provide you with a list of current on the market homes with a FHA, VA or USDA loan in place. 

I know there's CAD programs and so forth but on smaller projects ($50-$60k in rehab) are REI people hiring interior designers? 

If this was us, I would hope that we would have thought to get some gift cards for some local restuarants and dropped them at the hotel for them. 

The success of an STR will depend on how it is managed, designed, and marketed.

Has anyone used AI services to upload a photo and visualize various design features?

And to make this process more efficient, we must stay abreast of design trends, workplace innovations, and ergonomic solutions that can enhance the functionality and appeal of our commercial properties.Updating Yourself with Economic Conditions and Political Changes: Stay informed about macroeconomic indicators such as GDP growth, employment rates, inflation, and interest rates, as these factors can impact overall market stability and investor sentiment.

and design systems to address.

Home insurance won't cover a lot of system failures like electrical.Home warranties are designed to make the warranty provider money; they are slow to respond, quick to reject claims, charge you a trip fee for every visit, use the lowest-cost vendors that provide quick-fix solutions, and are generally not worth the paper they are written on.