How to split equity with family

[Mohamed Alli]

I am fortunate enough that my mother has created a trust for me to go to college, however, I've convinced her that we should use those funds to acquire an investment property via an FHA loan under my name I have the money necessary for the down payment on a 250,000 property and would use the money she's saved for the past 21 years to cover the closing fees or the other half of the down payment. However I am not sure how to give her a portion of the equity of the property, every example I've looked up has talked about "the gift of equity" from a family member but we won't be buying from a family member. Any suggestions will help