What do you do when a parent volunteers to help with a lot, which you happily accept, but then they become a little overbearing? I worked with a parent that was willing to help with anything the teachers needed, but once they felt comfortable around the teachers she started overstepping her boundaries. She would give her daughter permission to do things in the classroom that were against the rules but I felt uncomfortable confronting the mom about it. She was so helpful in so many areas that I let the little things slide, but the situation started increasing (snowball effect).
I would like to try other interventions before giving the mom an ultimatum.
I agree. They should be respectful of the classroom rules, and establishing those boundaries are important. No matter how helpful she is, it is still important for her to be respectful of you.