Our county court website helpfully provides downloads of the required forms, so check with Ada County.One thing to consider, is that nothing shapes up a multi-family bulding faster than "re-homing" one tenant.  

She has some other deals in the works (selling stuff elsewhere) and is considering hard money ad a sort of 'Bridge'

If this is someone with mobility issues you should try to accommodate since ADA might be applicable but in that case she would be obligated to pay for modification. 

They tried to force an ADA accommodation to let them stay longer. 

While SERVICE dogs are a legitimate need and are protected by the ADA, EMOTIONAL SUPPORT pets are not.

Just make sure you have a good solid rental agreement with everything in writing of what is and isn't allowed at your property....I don't smoke....or have pets and drink very very little so I had that in my ad as well as in the rental agreement about no smoking ANYTHING in or around the property....no friends that smoke coming over.....no pets,,,,,no waterbeds....etc......worked out great and I did that for 7 years,,,,,,,although it wasn't a requirement it was stated in the roomate rental agreement that rent is preferred to be in cash,

I am going to assume that the biggest needed is ADA type compliance.

But I see many questionable aspects about this extra charge and requirement now and in the future such as those "representing the unbanked" or "enforcing" the ADA looking for an opportunity for a case to file (Especially for large complexes), etc..

ADA, Americans with Disabilities Act.

He said that when he did an online ad a while back, it mainly led to bad leads.