George4Tacks
Level 15

TRY THIS:

Lower left is Settings > Firm Information (with a little blue pencil) > Click the pencil to Edit your address. > click Save when done.

NOTE: it does state:

Firm Information
Firm information will be displayed on filing documents. Your firm information will reflect the IRS registered firm information verified with your EFIN.
 
As @itonewbie says - You will likely be stuck with it until the EFIN is changed. https://www.irs.gov/tax-professionals/how-to-maintain-monitor-and-protect-your-efin

Answers are easy. Questions are hard!