How long

Ok me & my bf known each other for 1year now but we been together for 8 months he have 6 children from previous relationship ..., my question is how long should it be before I meet the ppl that’s important in his life? I only face time with 3 of his son that’s from the very last relationship he’s been in the other 3 kids he’s in a custody battle with their mom she cut all contact because he wouldn’t sign the papers to change his daughters last name 🤦🏾‍♀️