Regardless of field of law in which they practise, most lawyers in Ontario charge by the hour. For family lawyers in the urban regions of the province, hourly rates typically start at around $250 per hour. Senior family lawyers can charge upwards of $700 per hour, depending on their level of expertise.
On average, however, the hourly rate for an experienced family law lawyer is in the range of $500-600 per hour.
With that said, the total cost of any family law proceeding will depend on several factors, including its complexity. For very straightforward matters that involve few legal issues (such as an uncontested divorce or basic separation agreement), some family lawyers will offer a flat-rate fee.