Regarding how much time you have to respond, I am including a hyperlink for the rules of the Superior Courts in Arizona. However, you do not say what court you are in, so this may not be accurate. This should be a helpful starting point for you.
I strongly encourage you to hire an attorney in your jurisdiction to assist you.
*****NONE OF THIS IS LEGAL ADVICE AND CANNOT BE CONSTRUED AS SUCH. YOU NEED TO OBTAIN LEGAL ADVICE FROM AN ATTORNEY IN YOUR JURISDICTION*****