I would still only install one if the costs of extra vacancy/decreased rent is greater than the cost of the dishwasher and maintenence.Also, make sure you or the plumber incorporate the drain from the dishwasher into the sink traps correctly. 

[window broken from the inside]"You need to come unclog my kitchen sink ASAP, the smell is horrible."

Possible eviction, damage, aggravation, etc.If you sell on terms, the right way, to a family that wants to sink their feet for 7 - 10 years, you can get your price.An marketing idea is to tie the option sales price to some future appraisal, because the market is increasing in sales prices.With inventory low, what home owner wouldn't want to make 5 to 7% more by waiting 12 months?

I agree with @Nathan G. and would just reiterate to the tenants that despite the stubborn stain, the carpet was professionally cleaned prior to their move-in.This is a situation where your leasing procedures and lease document can either protect you or sink you.

I call them Safety and Water Inspections, check all the smoke alarms and under every sink, this gets me a visual of pretty much the entire property.

Regardless if hole was still there it is such a sandy loom the ground just sinks back in instantly so unless they are there at very moment dirt is moved away it can’t be done anyways. 

New floors, new shaker cabinets, new granite countertops, new backsplash in kitchen, new sinks, new toilets, new faucets, new wall backsplash tile in both bathrooms, new walk in tiled shower, LED light up mirrors, new paint, new electrical outlets, new paint, new windows, new double french doors, new pavers on the outside patio.What was the outcome?

There are deals in every market and it’s nice to have an intimate knowledge of a market and it’s geography before you sink money there.

Don't sink all into one thing.  

I think this is something that people who cut it too close in RE don't consider - anything that goes wrong is going to sink someone that close to the edge.