And made it almost through summer with no issues, but in August our outdoor air handler blower motor would periodically cutoff and not come back on.

Years back, I found it more economical for me to buy a house full of mid-range furniture and accessories (we have less than $15K invested) and use it flip after flip. 

There are 3 core (paid marketing) strategies to consider:1) Direct mail2) Outdoor (signs)3) Search marketing (Google AdWords)Big investors use all 3.Letters can work well, but broaden your thoughts on what you might send.  

The buyers realtor asks if his client can come by with an interior designer to measure our place to buy furniture bc he's headed back to italy and wants to make sure they have everything before he goesTuesday comes and the buyers realtor tells us his client cant close for 90 days bc the money is in italy and due to some investment rules or whatever the money needed 90 days.

I noticed that it does still scratch quite easily if you slide any sort of heavy furniture on it, but it's hard to see the scratches due to the color/ texture of the planks, so it still looks good. 

I.e. fans, furniture, etc, etc,. 

I also require they use furniture pads on all furniture-which I provide to them at the beginning of the lease so they have no excuse not to.

Have you considered adding something to make it a little more "sexy" like mounting a flat screen TV to include with the unit, including an outdoor grill, or adding black-out curtains in the bedrooms? 

Neither our contractor, nor my husband and I when we visited once a year, ever realized they had painted the walls gold, had installed a kitchen backsplash, had basically destroyed the carpeting (covered by a lot of heavy furniture), spray painted the patio, stained the kitchen cabinets, replaced a light fixture, and apparently never cleaned the kitchen, nearly ruining all the new appliances. 

Why do people rent furniture, appliances and TVs?