Are the homes that you are looking at bank owned homes? If they are that may explain why the information is not listing in the listing information sheet. If not then not sure what to tell you. I am attaching a link to a buyer advisory that could help answer some of your questions. See page 2 paragraph entitled Homeowners Association (HOA) Governing Documents for links that might help. If you are working with an agent they should have provided you with this information and the most recent updated form but this is direct from Arizona Association of Realtors website. Also generally once you buy a home and escrow is opened the title company will send you all the CC&R's and HOA disclosures on the property be sure to read them they are full of valuable information.
Good luck on your search