Well, the old adage is true: Rules without relationship leads to rebellion.
Where does that leave a foster parent, an adoptive parent, or stepparent? You can have authority without a bonded relationship. But it has limits. A police officer can pull you over, a boss or coach or a teacher can tell you what to do, but people don’t obey these authorities out of love. That’s why it’s critical a new stepparent know their limits. Focus on bonding with kids and work with the biological parent on setting the household rules. Stand together and you can enforce those rules.