While I am familiar with the ADA response to this topic -essentially all favorable to a tenant, but it appears there is an abuse of the definition as they are all employed, functional individuals who leave the assistive pet at home all day.

You'll need to run sprinklers throughout the house (costly for a number of reasons, especially if you have to increase the water main size), have an enclosed trash area with a drain, have electrical exist signs at the egress points in the house, and they will ultimately require you to become ADA compliant.

Like upgraded electrical, heating, ventilating, air conditioning, plumbing, ADA, etc...Where this comes into play is if say a tenant of one apartment unit sets his unit on fire, burns it up and now you have to go in to rebuild his unit. 

I attended a Commercial Brokers Real Estate Breakfast a few months back and Ada Healey, Vice President of Real Estate at Vulcan shared that they've only built three condo projects in their history, and they lost money on all three of them. 

I would like to know whether are all restaurants required to have ADA compliant restrooms?

I typically charge more for apartment buildings because they are more complex and require more coordination for fire sprinkler, ada, and code requirements etc.

It is a good idea to put section 8 accepted in the ad.   A

I've been been going over all the ADA requirements, but could probably go further in comfort department with simple things that might make a world of difference.

( buying some ADA now?

Here are is my advice if yo wanna try outHave a Professional website direct to the point REMEMBER first impression is the last impressionTry to create engaging content and share on your facebook pageUse a Professional profile picture and nice cover imageRun PPE ad and target your the group of people you wanna target, interest, as well as locationLet it run for few days make sure you add your facebook pixels in your website before you run ads that will allow you to track what happening and also add Google analytic to your websiteGet a designer to design nice ad image for you LESS TEXT MORE CREATIVE.Run it for few days and keep tracking the process and after few days start a retargeting ad as well with it so people who visited your website showed some interest and than left retarget them.Above tips were simple and to the point.