Is this proper English?- "I would like to speak to the Executive Director about my daughter's and my experience at the center." Thanks Again!

it doesnt sound quite right (to me)....maybe "I would like to speak to the Executive Director about the experience of my daughter and I at the centre."

Grammarly says this is a perfect sentence, with no errors.

nope. I agree with butter roborts response.

Sounds good to me but then in school English grammar was my worst class. Better listen to the other replies.

It is proper as long as people know what you mean. I personally don't really care about the fucking grammar.