Welcome to the Q&A Forum

My company currently operates four websites, independently of each other, a corporate website and three separate store brands. innovativemattresssolutions.com - corporate website mattressking.net sleepoutfitters.com mattresswarehouse.com All of our stores have the same branding, same TV spots, same print ads, etc across the company, we just swap out logos on all marketing pieces. It is proving nearly impossible for us to maintain four separate websites, currently on three different platforms. all four are hosted separately as of now. We would like to combine all four websites to one Wordpress Multisite installation so we can manage the pages from one place, using the same theme and even content in many places because all brands share the same info, policies, products, etc. We would set up wordpress multi using subfolders for installation and point the URL directly to resolve to the appropriate subfolder. The only site that would crosslink to the others would be the corporate website. Is this a bad idea for SEO? What other options would we have? Should we keep the corporate site on its own installation, but put the other three brands on a multisite install? Would duplicating content on the three brand pages be an issue? Less of an issue if they were not on multisite? Any insight is much appreciated.