A spouse in Toronto, Canada can seek a divorce at any time by filing a petition in the appropriate court in Ontario Province, although it is only granted after the parties have been separated for at least one year (or sooner if adultery or domestic violence are present). A divorce court can order temporary support during the pendency of the case.
The relevant law is national, but the relevant court is part of the provincial court system.
Abandonment, desertion or non-support of a spouse is not a concept recognized by criminal law in Canada, and has no relevance to Canadian divorce law which simply asks if parties are currently living together or not as a factual matter. If they are not living together, then they are separated, something that requires no court approval.
Upon divorce, and during a separation (in fact) of the spouses prior to a divorce, a Court can enter orders regarding property division or maintenance (and child support, if relevant) if the husband can be served with process, and as to any property that the Court can gain control over.