I would also check median home prices vs. rent potential, landlord-friendly laws, and supply vs. demand trends.

Provide the supplies.

Perhaps there's ample supply in Columbus Ohio but what parts of Miami?

During 2020 to 2022 I was fighting to keep my business profitable as materials and labor came in short supply and eventually led to the inflation we're seeing now.

During the peak season you have to make your money when the slow season is so much less.I do have events where the prices are expected to be high due to supply and demand.I do see some of the dynamic pricing days as being rediculous and your going to miss out on the early bookers looking for a fair price.

Need to supply them with Pay or quit notice.

Those are buyers not renters unless there is some other circumstance.I think you are right about supply....apartment construction is just about to come to a halt and unless interest rates drop in 1/2 probably won't see that pickup for a while. 

Consider cleaning, lawn care, snow removal and supplies as well as utilities  in your calculations.  

The logic doesn’t hold up...Let’s compare this with another investor who took a different approach.Seven years ago, Investor X purchased a duplex in a stronger market for $300,000.

The previous tenant left a machine, you are free to use it but it is not landlord supplied and if anything happens, its on you the tenant.