Legendary entrepreneur will be replaced by New York-based executive Leyton Perris, who joined the company as global chief operating officer earlier this year.
Ottawa's overall office vacancy rate stood at 9.8 per cent at the end of June, up two-tenths of a percentage point, but amount of empty space in the core declined.
With a focus on 'fusion' burgers and 'bringing fries to the forefront,' the restaurant chain has grown a following in Ottawa and Toronto while navigating the pandemic.