The lawyer can choose which matters they handle and is not required to respond to issues outside their engagement. They also do not have a duty to forward unrelated correspondence to your ex. If you show the court your letters on matters outside the lawyer’s scope, a judge will likely note that these were not properly raised with your ex and may not consider them as official notice. To ensure your issues are addressed, you should connect with an Ontario lawyer to communicate directly with your ex at the address for service or bring the matter formally before the court.