There are no alimony (spousal maintenance) guidelines in Arizona. About twelve years ago or so the Maricopa County Superior Court undertook a study to attempt to create a formula to use to provide a guideline for family court judges to use in ordering spousal maintenance (or alimony as it is called in some jurisdictions). The formula used a fraction of the difference in the parties' incomes to determine the amount of spousal maintenance. The duration of the amount under the guidelines, generally, was a one-third to one-half the length of the parties' marriage.

After several appellate cases were decided that determined it is inappropriate for a family court judge to rely on the guidelines (because they are not the law in Arizona), the Superior Court disavowed the use of the guidelines.

If you meet with an attorney and he/she informs you that there are spousal maintenance guidelines in Arizona (or Maricopa County), you are not being provided accurate information.

At this link you can find information about spousal maintenance.