Welcome to the Q&A Forum

Hi everyone, So i have one project where I'm planning to move current content on new domain, two reasons: 1. It seems current domain has some google penalty (backlink related, not manual) 2. Client wants rebranding and already has domain with new brand name. So as content is high quality and there is no content related penalty from google, what would be the best way to migrate existing content without passing any penalty AND without Google treating it as duplicate content. If i do 301 i suspect any penalty there is might follow, if i just copy existing content it won't be original content, what is the best solution here? Thanks