S-corps are not as popular as before thanks to tax reform of 2018.S-Corps do bring with them some additional compliance costs(Corporate formation, payroll tax returns, s-corp tax returns).If you go ahead with it - make sure the savings are greater than the additional costs/headaches.Speak to your CPA before proceeding.

Agent would be the best first choice as it's their profession and they'll be able to screen those people for you.

I ran and operated numerous short term rental properties successfully between 2007-2015 wayyy before Airbnb became so popular and everyone in every corner decided to do this as a form of extra income.

If mathematical, consider the interest rates when you make these choices. 

There are quite a few themes out there that you can use, the most popular I have seen is "Houzez" on themeforest, which costs around $60.

There is a lot of talk about the future of tourism during and post-COVID and how it will affect the behaviors and choices of vacationers. 

That's a very very specific and nuanced idea, and may not be a wise choice depending on your level of experience in real estate investing as a whole as well as short term rental or hotel experience.

Some of these functions have moved to bigger stores or are popular in malls too.

It's something simple but it can be part of first impressions if someone does drive by.You can look toward some very simple and inexpensive staging type stuff, such as trying to make it seem more personal and inviting without making potential buyers feel like they're invading someone's space or subject to someone else's opinionated style choices.

When it comes to section 8 there is a whole host of positive reasons why in Detroit in particular they are a great choice with limited risk.