Look for properties with low taxes, separate utilities, strong demand, and potential for rent increases.

That is, buy one home in city X (where I don't live), live in it a couple of months let it be an STR the rest of the time and then the next year (or in two years) repeat again in the same city. 

The property has done quite well and has appreciated nicely over the last couple of years as I’ve gone through and improved things unit by unit.

I am betting you didn't put this (or the other ones) home on the market to then become the bank for someone who only has a couple thousand down and no credit instead of selling to a verified buyer, right?

This won't change the numbers at all, but it will correctly reflect the personal ownership of the RV.Since the RV is in our personal name, and our two LLCs use it for travel, should we treat the RV as a separate rental business (sole proprietor) and rent the RV out to our LLCs when needed for travel?

Separate the work into 3 separate categories: 1) Those that are specifically related to the future STR usage, 2) Those that benefit you while living in the house and have zero bearing on the future STR, 3) those that benefit both you and the future STR....assign a percentage to the usage.Be specific and complete.

You may want to get a couple of quotes.Best of luck to you!

I know there is a huge shortage of housing and that has driven up price in the past couple years (along with other factors such as the pandemic, population growth, etc) so, I see listings for 2br-1bth for up to 2200 on places like Zillow, Redfin, etc.  

We pretty much only do BRRRRs since flipping has been unreliable for us over the last couple of years. 

You’ve got a couple of good options here.