I redesigned and redevelop an old website for a client with different offices of their company.
Let's say for example: www.company-sydney.com.au, www.company-brisbane.com.au, www.company-melbourne.com.au
Im gonna replicate the sydney site along with its content to have the brisbane and melbourne website up as well. There are only minor changes on some images and contact information but most of the pages of all sites are the same.
Will that affect the SEO and ranking of each of the site?
Thanks in advance,