Two units share a washer and dryer. 

Does anyone rent washer and dryers to section 8 tenants?

She’s all of a sudden sick and is unable to work - this was her excuse after she told me she’ll pay April’s rent by the 25th. 

I sub-meter the elect & it avg's $23/month for the washer & elect dryer). 

In my experience, this tenant will be someone (from personal real-life examples) will later ask you to put in an extra rod in the already huge walk-in closet because they'd rather have more rod on the wall than the extra space on the end most people like to store boxes in, or they will later ask you for room darkening curtains at your expense because the street lights are too bright, or they decide they want different flooring, or different wall paint or they want in-unit washer/dryers even if your plumbing can't take it in an old building...just on and on and frickin' on.Wishy washy applicants, for me, always, always, always, turned into high-maintenance pains in the rear.So, sure, if you're desperate to get the place rented, and you're willing to deal with whatever is going on with these people that means they need to see your unit again, and don't respect the fact that they're being a pain in the butt already.....then go ahead.But, I'm here to tell you that odds are screaming that these guys will be a PITA, and you will wish you waited to rent to someone else.  

It’s true that they rarely uninstall and patch and paint to as good as new, so I have to charge against their deposit as needed.The main thing is you cannot let it snowball from garage opener at your expense to new washer and dryer at your expense etc. if you end up paying for any new updates I’d suggest an agreed upon rent increase for financing the improvement so like new appliances is an extra $100/mo (with their permission and yours).

I asked them if they planned on sleeping 2 guys per bed and have no kitchen, no wifi, no washer/dryer. 

Put it wall to wall throughout the entire unit, except maybe the bathroom.I used to manage an old apartment building that was bare bones - a good price in a good neighborhood, clean, well-maintained (great manager ha ha), but mostly really tiny studios, no washer/dryers even in the building at all, showers only, no disposal - you get the picture. 

We don't supply fridges, window ac, or washer/dryer.

I am doing a few changes including legalizing the basement suite and one place I'm struggling to find a good solution is on adding a washer+dryer on the main floor.