Aaron Shearer is fighting the city of Scottsdale over its sign rules. Shearer is a businesswoman who owns Green Bee Produce farmers market. Attorneys from the Phoenix-based Goldwater Institute have filed a lawsuit against Scottsdale on behalf of Shearer. They argue Scottsdale’s rules related to signs, including temporary ones used by Shearer for her farmers markets, treat some businesses different than others and violate free speech and equal protection provisions of the U.S.