Home depot offers zero interest for two months.

Quote from @Shiv Panda: You can buy them online, maybe even at large box stores like Home Depot, Lowes, or other appliance retailers.I did a search for "commercial washer dryer card operated" and came up with many sites that sell them.

You are remote, the next Home Depot might be 4 hours away.

Or a garden shed, art studio, etc...Just a thought... 

I added more cabinets in the kitchenI added a handrail to steps in the rearI had new cement poured on sidewalk, porch and drivewayI added new storm doors to all 3 doorsI added new cordless, faux wood blinds throughout home (Home Depot installed)I repainted and repaired detached garage Lessons learned?

Trust me they are ******** 5 they say they provide maid service well add this up cause i know they def dont pay the maids this 7 tennants times 89.00  yes not kidding they also demand that you either replace the air filters for the house lolololol. 7 tenants times 20 for filter no joke 140.00 for 2 air filters so how much do they cost at Lowe’s or Home Depot hmmmm for one less than 10.00 they demand you send a pic to them of you changing them if not they send the property manager of 500 names they call her runner,maintenance person ,lock changer , key holder, put up sign person 5 min later on floor, for any of those services  well thats a charge of 65.00.

We're able to afford the place as a 2 flat, but still pondering legal options for monetizing the garden unit, if any exist. 

Upkeep and maintenance, landscaping, garden and fencing in the backyard.

So it's a long road before you have any income coming in from that garden and there is absolutely no guarantee it will ever even get upzoned. 

One can walk into ANY Home Depot or Lowes and find an assortment of 2 prong outlets.