Hi @TonyHeywood,
You won't need to separate two log-ins in the app as your myGovID is used to verify you for both firms. You'll use a single myGovID as you can't create two using the same documents. You'll need to have your myGovID linked to the second firm through RAM similar to how your other firm has been linked. By the sounds of it you may have set your myGovID up using a firm email. We recommend not doing this as your myGovID is your own personal identifier. If you left that firm, you'd likely lose access to the email, which is why we recommend using a personal email address for your ID instead. The myGovID help page has a section on changing your email address. Our tax professional myGovID page also runs through linking your myGovID to RAM for your firm(s) and should help out.