We aren't sure whether your proximity to laundry facilities is a violation of the American's with Disabilities Act (ADA). Our first suggestion is that if you have exhausted all hope of negotiating with your landlords, to contact a county or city ADA representative. There should be some kind of entity that regulates fair housing in your area.
Please check the ADA Guide - found at this link -
http://www.ada.gov/cguide.htm. It includes many contact numbers that might lead you to the person or agency that can help.