There are laws of intestacy in Ontario, but those seem to deal only with the distribution of an estate. Nevertheless, the primary persons who would apply to be the estate trustee in that kind of situation would be first the spouse, and secondly the next of kin in order of birth. I would expect you could use that as a template for having the spouse sign the T183 or, if there is no spouse (and that includes a common law partner) then the next of kin being the oldest surviving child. If there are neither children nor a spouse, then I would expect the parents or a caretaker (see next sentence) would be next in line. I can picture that last scenario for the case of a disabled adult who never married and was basically looked after by a parent or some other relative. Probably one of them would have had Power of Attorney. Come to think of it, someone with a POA would probably jump to the top of the ladder ahead of spouses and children..
People come to ProFile for help and answers—we want to let them know that we're here to listen and share our knowledge. We do that with the style and format of our responses. Here are five guidelines:
Keep it conversational. When answering questions, write like you speak. Imagine you're explaining something to a trusted friend, using simple, everyday language. Avoid jargon and technical terms when possible. When no other word will do, explain technical terms in plain English.
Be clear and state the answer right up front. Ask yourself what specific information the person really needs and then provide it. Stick to the topic and avoid unnecessary details. Break information down into a numbered or bulleted list and highlight the most important details in bold.
Be concise. Aim for no more than two short sentences in a paragraph, and try to keep paragraphs to two lines. A wall of text can look intimidating and many won't read it, so break it up. It's okay to link to other resources for more details, but avoid giving answers that contain little more than a link.
Be a good listener. When people post very general questions, take a second to try to understand what they're really looking for. Then, provide a response that guides them to the best possible outcome.
Be encouraging and positive. Look for ways to eliminate uncertainty by anticipating people's concerns. Make it apparent that we really like helping them achieve positive outcomes.