Here is the Civil Code of Quebec, L.R.Q., c. C-1991: Don't leave home without it! It sets out the general rules of civil law for the entire province, and unlike common law jurisdictions, we turn to the Civil Code first, before referring to case law for inspiration and guidance.
For all family proceedings which are not part of a divorce file, it is the Civil Code which applies: e.g. custody, alimentary pension (spousal and child support), parental authority and its deprivation, the right of the child to be heard, the best interest of the child, succession, family patrimony, marriage contracts, matrimonial regimes, compensatory allowance, etc.