The washer and dryer are already located in the bathroom so it feels like there is a lot going on. 

I eventually had to call in licensed plumbers to re-plumb the entire house including adding in all the proper waste vent systems for the sinks and washer connects to the tune of $3000.While all the plumbing issues were going on, I had been showing the house and screening tenants.

I watched him do some wiring and install a washer and dryer in the basement, tear out the dated kitchen, stuff like that.He was averaging 6 to 7 work hours 4 and 5 days a week.

The lady (grand daughter) said that her grandmother had never been married and that the only child was her mother who had passed before her grandmother passed.

You can make minor adjustments based on the type of appliances (dishwasher, clothes washer and dryer, air conditioning, etc.) and the size of the rental.

Are you sure you don't want to think over the "No Dishwasher"  It is my understanding that dish washers use less water then washing by hand and you can buy a dishwasher for the same price as a Kitchen cabinet.  

None of my units have washer or dryers so they all go to laundromats close by.  

They make a sandblaster attachment for a power washer .

Jetting is simply pressure washing the drain field lines from inside, and all it requires is a high pressure hose with a special nozzle and a pressure washer.

The appliances including washer and dryer ran me $1350.