Embattled former solicitor general Kash Heed is facing another challenge, after his former constituency assistant filed a wrongful dismissal suit this week.

Keith Frew filed the complaint in B.C. Supreme Court on Monday, claiming "mental distress" after he was fired on February 5.

According to a copy of the lawsuit, Frew had worked as a constituency assistant since 2001, starting out in the Vancouver-Kingsway riding before switching to Vancouver-Fraserview, where Heed was elected as MLA in 2009.

Frew describes himself as a "valuable and reliable employee" who "faithfully and diligently performed his duties" in his statement of claim.

He claims he was fired without cause or reasonable notice -- the termination became official 21 days after he was notified by letter.

Frew also says that Heed never met with him to discuss his job performance and was "abrupt and rude" during the firing.

There is no mention in the statement of claim of the RCMP investigation into Heed's election campaign that prompted him to step down from his position on April 9.

Frew is seeking unspecified damages in the suit. Heed has 14 days after the filing of the claim to respond with a statement of defence.