Service animals (e.g. guide dog for the blind) are covered by ADA and must be permitted in public spaces, defined as an inn, hotel, motel, or a lodging offering short-term rentals that operate similarly to a hotel. 

It was actually the ADA that required nonslip around 1990. 

ADA regulations applicable? 

Did you have to deal with a lot of add ADA requirements? 

CONVERSION FEESThe owner must make a Conversion Fee payment of 5% of each unit sales price to the DHCD within 30 business days of the settlement date (§ 42–3402.04 of the Code of District of Columbia).However, exemptions can be granted if the property meets at least one of these qualifications:-Was previously owned by a sole owner or registered vacant for at least 12 months-Sold to a low-income household (80% or less of median household income)-Sold to a person 62 years of age or older-Sold to a disabled person (as defined by the ADA)-Sold to a tenant who lived in the property for at least 12 months prior to the condo conversion

If they have not confirmed an hour prior to their appointment, I send this text to their phone (which was required as part of their contact information I required in the response to my ad):As I had requested in my email, you have not yet confirmed your apartment showing for this evening, scheduled for 7:00pm.

(Driving a tenant to the airport, helping a tenant dispose of their pet after it died, moving a mailbox to better accommodate a tenant need, replacing regular toilets with a chair height (ADA height) toilet for those who would benefit from such, sending a condolence card at a time of personal loss.)Move in packet with information about the neighborhood and contact information for reaching communicating with us.Move in gifts that will help them settle in.

The cost also goes up because of sprinklers, parking spaces, ADA compliance, etc.

The surprising thing to me about this apartment isn't the price, it's that it looks like he somehow got around following ADA dimensions for the bathroom.

Determine through discovery the buyer(s)’ preferences in a home as well as the location, price, size, type of home, special needs, and ADA accommodations etc.PRE-CONTRACT ACTIVITIES178.