It’s the ADA that doesn’t classify them as service animals. 

Will get them before agreeing to anythingIt's for an office - city is asking me to make the building ADA complaint by fix up outside concrete ramp, remove another small ramp, build a new ADA washroom and open up the small hallway

There was no ADA back in the day as it was an afterthought.

Yes - show current photos and state what work is being made in the rental ad as well as photo description (Zillow has photo descriptions). 

You should have photos to post in the ad as people will not apply to rent a place without seeing it first.  

Any help is very much appreciated. thanks, Scott G Get an attorney because most likely the tenant has also filed a complaint with ADA.

Have done an extremely extensive full gut remodel (practically brand new home, literally everything updated/repaired from foundation, roof, windows, all exterior work, LVL beams to demo load bearing walls and create open layout, med to high end bathroom/kitchen renovations (master shower is floor to ceiling tiled in w/ double rain shower and ADA compliant, granite countertops, 6-8 person island, all new stainless appliances), all new electrical wiring, plumbing, etc., solid core doors, widened old 22' door openings to 24', new laminate wood flooring throughout, 5/8' baseboards/trim throughout, tankless water heater, tape/bed/texture/new paint on all new drywall), etc.I'd love to hold onto the property as I have no compelling event forcing a sale. 

ADA CERTIFIED, first thing on any commercial property and ask around could be certified but still a quake very few are good in this area4-Expecially if commercial again- but also usefull sfh  thermal imaging camera, .oisture meter, and underground sonar water leack detection ew   we are talking a ten k investment but some to cheap to pay for, same to you you get what you pay for. 

If this property is historical in the sense that it is on or may be placed on a historical register, the renovation project will also have to conform to a set of conditions that will generally have to do with maintaining all or significant portions of existing architectural elements such as facades, building materials and colors.Historical or not, any planned project will have to be heavily vetted in terms of existing conditions and projected uses for all major building elements such as structural, electrical, plumbing, mechanical and ADA and ANSI provisions.

Decided to try what @Wayne Snyder suggested for Ada County, The county assessor website does provide gis files for all parcel within the county as well as unit counts for each one.