A family lawyer should be present when the parties sign such an agreement and seek legal advice on their own. As the BC Notary Act doesn’t give us such a power to practice family law, so our office will not be able to witness such document.  For COMMERCIAL LEASE or PROMISSOR NOTES, our signatures do not add any additional legal effect/weight to the documents, as they may also be properly executed before a regular witness (who can be your friend or neighbour).