Twenty-one collectives filed two lawsuits on Tuesday seeking a preliminary injunction before LA's new ordinance takes effect in June.
The suits challenge the ordinance because it closes dispensaries that weren't registered with the city three years ago. The collectives have business licenses but they either didn't register in 2007 or opened later.
They claim the law arbitrarily discriminates and denies the collectives due process.
"We're not really asking for much," David Welch, one of three attorneys representing the dispensaries, told the LA Times. "All we're asking for is to be given due process and to be treated equally."
A spokesman says the city attorney's office hasn't reviewed the lawsuits but it's ready to defend the ordinance.
"We're ready to defend the city's ordinance," the spokesman told the Times.