If you create a alluring relevant stuff and being active on Facebook fan page then you can get max likes.
I would like to suggest you to keep posting and invite ur friends and share ur page with other social networking sites and use forum to get some real likes. Comment on niche pages on Facebook.
At first load your page with Interesting posts, then invite your friends to like, then make some of your close friends admin of your page and tell them to invite their friends to like your page.You can buy fb likes as well just like most fan pages have done,freelancers on sites like SEOClerks offer this service.So if you want by this way, you can get fb likes from there for a small cost.