I'm from Ontario.
Common Law for 12 years.
There are online separation agreements that are pretty general. I think I found one that did not say husband and wife.
He didn't want to sign it anyway.
We did not go the lawyer route.
We had pretty much separate finances except for the real estate.
We have twin DD's that were 7 at the time of DDay.
He did not want to have a set visitation schedule since he was travelling to Europe to see MOW.
You are considered common law if you have been living together for 2 years, you are both unmarried (actually if you have kids together you are still common law even if one of the parents is married to someone else but cannot be living with them)
Try looking online for BC forms specifically. I found a lot of info online.