You might want to start with Helene Mathieu. She's from Montreal and has had a practice here over ten years.
But I'll give you a heads-up - jurisdiction becomes the issue and for many reasons it's less complicated (especially if there's kids) to choose your home province instead of the UAE but that means a lawyer wouldn't be able to represent you very effectively from here.
Still...for advice or perhaps a connection in Canada that can help you, try Helene Mathieu Legal Consultants. Same building as the Consulate.
best of luck