@Jesse Waters I am NOT an attorney but have had experience with ada and other protected classes.  

The closet is approximately 5x6', so I could use the entire space and ad a tub or only use part and add a small shower.  

The property is a 100 year old storefront that got an adaptive reuse into a mixed use property by adding two apartments in the vacant upstairs.The building got a full overhaul in the process including all new HVAC, electrical, plumbing, fire sprinklers, structural repairs, ADA compliant bathrooms, and new storefront facade.

There is nothing you can do about it.As for Fair Housing, my tenant’s neighbor will be protected by ADA - she has the right to move in her own house on wheelchair even after 11pm if she needs to.

ADA laws do not require it.2.Yes People can have 2 service animal's!

In my opinion, I don't think  you need be concerned about an issue with the ADA.

You're in violation of federal law with the construction as that creates a different qualification under Dodd-Frank and a 9 month balloon, predatory lending, Texas municipalities  also have predatory dealing laws, looks like you might fit there too.The "handicap" have no special provisions as a borrower, ADA has no effect in that respect. 

check with the local authority having jurisdictionyoull need to really have all your questions ready and be able to justify the need in your areathere will be permit costs and fire marshal approvalyoull also be looking at access front door, back door, window sizes for fire escapesramps, ADA requirements and are there stepsenjoy

I am pulling in the words Boise and Ada County to this thread.....as it might alert some Boisean's via their keyword alerts. 

@John Lee you get what you pay for with free advice.The ADA only applies to spaces available to the general public (i.e. stores, restaurants, parks, public streets, office buildings, etc.).Fair Housing deals with housing and it does not apply in every situation.