You can update your first name at SOU without a legal name change. The SOU system calls this a "preferred name." You can see a comprehensive Question and Answer section and start the process here.
Directions on updating your SOU email address to match your preferred name will be shared soon.
If you have further questions or concerns, please feel free to connect with Alex Sylvester, Equity Coordinator for Gender and Sexuality Justice at email@example.com and/or Dr. Matt Stillman, University Registrar at firstname.lastname@example.org.