Notice property taxes are higher in Canyon county for landlords, but price points are on average $100K less than Ada county. 

ADA only applies to service animals in public spaces.

@Joe SplitrockI asked about the dog and she said has a legal right to have a ESA or ADA animal for medical purposes and according to state law I am not allowed to charge monthly.

Have you been to the ADA site. 

When I was not a W2 employee, I bought Health Insurance thru state Exchange under ADA. https://www.healthcare.govHowever, it was not cheap.

ADA, Americans with Disabilities Act.

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

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,

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

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