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

Now we see 2023 in reverse, where that year had real demand greater than real supply.

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

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.

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. 

Need to supply them with Pay or quit notice.

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

If they seem agreeable, then you can ask if they would prefer to cut the cost down the middle or would they prefer to purchase the supplies and you will assume the cost of labor to install it. 

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.