We could also add washers/dryers in each and convert the laundry room to another unit or two.

She said it was her daughters.  

Keep the cute house neat inside and out.Annoy thing: since she moved in, she asked to replace dryer, then dish washer(said after washing will have water spot on dishes), then clogged under kitchen sink after Thanksgiving, add light... finally we had a quite holiday.   

Driveway and large oversized shed.Laundry storage with Washer/Dryer hookup .

Have you considered maybe a one year lease at a nice apartment in a big complex near your home (walking distance).You can help her on days when she doesn't feel well, and she can come over and help you on other days.Here are some 1br, wheelchair accessible units with pool hot tub, dog/cat friendly, gated with onsite parking and air conditioning, as well as a workout room (if the Doc's tell her to do that). https://www.apartments.com/apartments/los-angeles-ca/1-bedrooms-pet-friendly/air-conditioning-washer-dryer-dishwasher-parking-fitness-center-wheelchair-accessible-pool-gated/?

If the washer and dryer is not included, is it gas or electric hook ups?

Most cover HVAC, water heaters, appliances, some plumbing, some electrical, and optional coverage on things like washer/dryer.  

It's inexpensive for the tenant and a must have for landlords (especially so if you have a washer/dryer or pet on premises) 

What not to stuff down the garbage disposal or over-stuffing the laundry washer.  

In option B will the dishwasher open without the door banging into the stove or stove handles (the lower ones anyway)Might need some fillers in there if you go with that option to give enough clearance for the dish washer door to drop down.Personally I would not like the sink beside the fridge.