I am going to be working on a client's site soon. Now the problem is, once they rank, they will have no reason to keep me, they will get rid of me. How do you get more control over your client's rankings, so they cant just fire you? Does it work if I get my own domain, build links to that, and 301 redirect to client's site? if they fire me, I can just turn off the 301 and their website will plummet in the SERPS? if not, then what else can I do so they cant just get rid of me and maintain their rankings?