Do I need to be related to my cosigner? July 31, 2020 18:12 Updated No, we do not require that the cosigner is related to the student. Related articles Does SoFi offer a cosigner release for their Private Student Loans? What is the minimum credit score a student must have to qualify for a SoFi Private Student Loan? On my SoFi Private Student Loan, can I have a cosigner who is not a US Citizen? For Private Student Loans,does SoFi offer any special discounts or forgiveness program for those in the military? What proof do you need in order to verify being in the military? What happens if my school certifies less than $5,000?