If your brother has the money, any lawyer from Fromm, Smith and Gadow would be a good choice. 2198 E. Camelback Road, Suite 365 Phoenix, Arizona 85016,Phone: ###-###-####
Email: ____@____.com
I am an attorney but do not practice in this area, in fact, I know few lawyers who do. Sad thing is that there are A LOT of bad divorce lawyers out there. Many divorces in Maricopa County are actually done pro per (representing themselves without a lawyer). Warn your brother to please not be overly impressed by a TV or yellow pages ad. But if he can't find someone and he chooses to find one off the internet, make sure to check that the attorney is AV rated. You can check that off Martindale.com If he's going to pick a stranger, at least he'll pick a well-respected stranger with an AV rating.
Good luck.