From the CBC News article:

Marshall was one of two longtime Ottawa Hospital directors named in a statement of claim filed in January 2016 by the hospital, which alleged that they defrauded the institution in exchange for luxury vacations, free or inexpensive cars, and other family favours.

Marshall responded to the allegations last week, claiming he was always a “loyal and honest” hospital employee who never took inappropriate gifts, and outright denied that he gave potential vendors any unfair advantages during the contract bidding process.

He also filed a $4.5 million counterclaim against the hospital, suing the institution for negligence, defamation and punitive damages.

Read more at the link:
http://www.cbc.ca/news/canada/ottawa/ottawa-hospital-response-brock-marshall-lawsuit-1.4229259