Rarely will we have challenges with 2 dogs in a single family neighborhood like Anthem. Private property rights almost always trump in a situation like this.
We just adopted a 2nd dog on Thursday of this week, a cute 5 lb Maltese. He has an younger (bigger) sister that is a year old. We had 2 for 16 years, lost them and now have 2 again. So much fun to have a pair.
Anthem is a very nice area, have you visited Phoenix before?