Is It Legal For My Landlord At My Apartment Complex To Impose A Curfew Upon My Children?

No.   Multiple courts have ruled that it is illegal for landlords to impose a curfew upon children. The Fair Housing Act makes it illegal for a landlord to enforce a curfew against children.  As such, a landlord cannot enforce a rule that requires children to come inside at a given time.  It is the responsibility of parents to determine when to bring their children inside, not the landlord’s.