We are in Tampa so a similar market.We provide a starter set which is clearly communicated to guests (thought some people do not like it and clearly do not read which you cannot help) generally consisting of:- 2 Laundry Pods- 2 Dishwasher pods- 2 Rolls of Toilet Paper per bathroom- 2 Paper Towel Rolls- 2 Trashbags- All soaps are refillable including dish soap, hand soap, and body washes/shampoos.They are expected to get their own should they run out of anything. 

I have been researching tankless heaters, and I'm leaning towards an electric tankless heater to save space and finally be able to wash laundry in-house.

We used to provide washer and dryer, but tenants washed greasy, oily work clothes leaving the washer unusable until cleaned, or clogged the pump requiring disassembly to remove obstruction.  

Power washing the exterior, repairing the driveway, and painting the front door What was the outcome?

We are still using some towels after 7 years of use as well as all the sheets since we started.The key to those is washing them right.

@Jonathan Bombaci recommend using that amount as a bargaining chip for lower rates.80% of evictions are wash, rinse, repeat. 

Another issue I had with him was he did not priortize my needs at urgent times during my transaction with him.

Power washing the exterior, repairing the driveway, and painting the front doorWhat was the outcome?

Whereas curtains you can easily throw in the washing machine.

Power washing the exterior, repairing the driveway, and painting the front door.