You'll also need storage space for cleaning supplies, change of linens and towels and small miscellaneous items like a first aid kit, extra batteries, flashlights, broom, vacuum, etc.

One suggestion would be to offer the seller a chunk of cash extra to offer the tenants a keys for cash option.

Detroit is not what most investors consider an appreciation market. 2 years of appreciation during a time period when every other market appreciated also, following decades of up and down with extra down doesn't suddenly make it an appreciation market.

They tried to compensate for this by providing me with an extra list to call which I appreciated but even that proved to bring barely any more lead flow. 

There is no need to provide extra redemption protections for lienholders who might have been unaware of the tax auction.

In my experience, and the experience of hundreds of professional property managers I network with, counting the late fee as "extra income" will come back to bite you.

I'm not trying to rip into the work and expense you've done, but for not much more per night, I can get something really great with more bedrooms across the street in Championsgate, Windsor or Solara.I'll jump in about the grill too, that's way too much, especially since your title says "Pool & BBQ", but I have to spend extra to get the BBQ part.

If anyone has any extra tips, I will gladly take them all!

Also want to add an ADU to get extra cash flow but not sure how much a fully permitted ADU adds value to the property when refinanced.  

Then all of the extra money you paid over that 5 year time frame gets washed out the door.