Need advice about my baby girl starting school in the fall for moms in North Carolina

Mandy • 💏2012 🎀👶🏼1/10/14👼🏻+👼🏻+👼🏻+👼🏻2019👼🏻6/30/19,👼🏻5/31/20

Ok so we live right on the line of harnet county and Moore county but technically we’re in harnet so my daughter has to go to a school in this county and I hate that I’ve not heard good things about their schools at all my mom lives in Moore county literally 2 minutes away from the elementary school I went to when I was little I want to try and use her address to be able to put my daughter in that school but don’t know if I can or even how since she’s my only child and I’ve never done this before