venting a stove in a office building

Hi there,

I was wondering if anyone knew the answer to a venting question.

I am about to lease an office space. I am a non-profit that serves children. I want to put a stove/oven in the kitchen so I can make hot snacks and meals. The kitchen shares a wall with the bathroom. There is a vent in the bathroom that goes to the roof. I was wondering if we could connect the stove vent to the bathroom vent and avoid cutting another hole in the roof. If I can, what kind of ducting do I need to use?

I am not sure if this matters, but while the office space is office space now, it was once a restaurant.

Thanks so much