as the title says, can a signed android apk be published/signed by multiple google play accounts?
we have a possible new requirement where we will have to remove the existing play account and create a new one but we are keeping the same signed keys for our apps and do not want to upload a whole new app with new signing key.
Is this possible?
You can add additional users to your applications and give them whatever permissions you feel are appropriate. To do so, follow the Add Developer account users & manage permissions guide.
However, it sounds like you don't really just want to add additional users. It sounds like you want to do a full transfer of the application to a new account. In that case, you will want to follow the Transfer apps to a different developer account guide.