I suspect that I have been invited to a meeting with my manager next week to be terminated. Do I have a right to know in advance if the intention of a meeting is to terminate my employment so that I can either prepare in advance or schedule a lawyer to be present?

You do not necessarily have a right to know if this is a termination meeting as the law does not deal with something like this. However, if you are being terminated you should say as little as possible, take the letter they offer you, thank them, and leave it at that. After the meeting you should contact us immediately for a phone call to discuss your employment situation and entitlements upon termination.