First, build the actual business in theory with a brand.Second, go to every real estate investor meetup in the area and see if this is something that people would pay for and if so, how much.

If two people own a property ( they are both on the deed ) and they put the property up for sale.

The people I rent to don't like 20 year old appliances.

It is, because in the end people let you down and over promise and under deliver and to tell you the truth cause I've dealt with so many now, some agents are very good and they listen as to what your buy box is and they provide comps and an ARV analysis and other agents aren't willing to do sh!

Yes, many people do.

I know a lot of people here both on and accepting Section 8 and I have never heard of them refusing to pay legitimate rent claims. 

Nevertheless, I think if more people are talking about it, we can all work together to protect each other from any nefarious operations in our industry.

People call me from all over the world to invest in real estate.

This helps weed out the people who aren't that interested. 

In the end, I prefer the long-term rental route with a good tenant though and over time when I start traveling for extended periods again, I will likely shift them back to long-term.I personally, would not purchase a property for the sole purpose of being a vacation rental - it's just not part of my investment strategy though, I have met people who do quite well with that model.