Mainly you're responsible for the sewer bill and to provide heat and hot water, but not things like air conditioning.If this was winter, I'd be concerned about pipes freezing if the relationship isn't going well, but a 10 year tenant probably won't let that happen.I don't really know about the downsides of not having a lease. 

After being a landlord of 4 doors for years, my wife and I decided on selling our property in the insanely hot Colorado market, and we set out on a road trip to find our new home.

. :)You will need a degreaser, Dawn and hot water is excellent, gloves, a bucket, cleaning cloths, and a lot of elbow grease.

I am in Pinellas County as well and lately Holiday and Crystal River has been a hot spot. 

Charleston is still crazy hot and any decent detached SFH is selling for $250k distressed or $400k+ on market.

Quick Insights:Hot Areas: Some Memphis spots are heating up for ROI – it's not just BBQ that's hot around here!

Both are older homes, the 3/3 was renovated in the 80s.2/1 home is prime candidate for a tandem house out back or teardown and convert to Rowhome zoning, (properties were recently rezoned just across the alley tandem homes, ADU already zoned ok) 3/3 is newer, on a double lot, but my thinking is that I could hold these for a while, go through the rezoning process and sell both if/when the neighborhood continues to get hot enough for more density building, possibly work with a contractor friend of mine to get going in this direction, or try to do construction of tandem home behind 2/2 and then adu behind 3/3 home.Are there any resources for spreadsheets or analysis specifically in this realm/that I could show my financiers to calculate the projections on this?

You'll also get bombarded with solicitations for 'hot leads' and 'done for you marketing'... these shiny objects don't always pan out and you should be cautious when considering anything that makes lead generation seem 'easy'.Tons more to consider as you get started.

So you may go through more people before you find someone hot for the unit to vet.

The U.S. is in much better shape and we still have a hot job market with high consumer spending.