They are great cash flow machines and have experienced appreciation, but I bought the last one in 2015. 

There is a utility sink in the basement next to the washing machine (a machine that has a delicate cycle and I pay for water) - so for this property it's actually not reasonable to wash a sweater in the bathroom sink.

The property has a washer and drier hook-ups in a little laundry room, but I do not know where to purchase a coin operated washer/drier and or what is the going rate for this type of machine.

Does anyone know if you can convert traditional washers and dryers into card operated machines?  

Good luck to OP...and you while driving that pedo-van/Mystery Machine around town that you’re so proud of.OP to better “substantiate” - what make and model is your vehicle is? 

I can personally say I am an offer machine, all day, every day, non-stop, as many as we can physically place offers on, I know I may be at this point a different type of buyer, but the point I am making, is that I've been there, and if I would have stopped due to a few offers not being accepted, I would not be here.

Just have tenant cut the plug off the roasting machine,peel back the insulation from the cord and strip both wires. then when he wants to use machine, he could stick the wires in the oven, or dryer receptacle.

Exterior 1.)Left front Corner of home2.)Right front Corner of home3.)Left rear corner of your home standing back as far as possible4.)Right rear corner of home standing back as far as possible5.)Air conditioning unit6.)Tree Houses/sheds/barns/fencesWater Heater 1.)Picture of the water heater to include the pipework exiting the heater2.)A picture of the manufacturer/information label if accessibleAir Conditioner 1.)Air handler 2.)Manufacturer Label if accessibleElectric 1.)Clear picture of Panel (s)2.)Manufacturer Label if clearPlumbing 1.)Image of plumbing under bathroom sink2.)Image of plumbing under kitchen sink3.)Pipework and hoses connecting your washing machine to the wallInterior VideoPlease take a walk through video of the main living areas of your property, please provide narration as you film.

Even if its adding a vending machine, in a 5 cap market that can add value. 

Vending Machines: A method to "let your money work for you."