Maggie was born and raised in West Chester, PA, attended Westminster Presbyterian Church, and graduated from Rustin High School. She has a B.A. in Theology and Youth Ministry from Eastern University and an MDiv for Pittsburgh Theological Seminary. She was ordained in 2018. 
Maggie has completed 6 units of Clinical Pastoral Education and holds a Church Planting and Revitalization certificate. She represented Donegal Presbytery as a Young Adult delegate to General Assembly, worked as a Young Life leader for West Philadelphia suburbs, and has filled in as Stated Clerk at National Capital Presbytery.

Maggie met her husband, Jon Niles, while in Pittsburgh, and they were married in July 2021. They first welcomed rescue puppy, Bryz, into their family - and then daughter Sophie, born in August, 2022.