Only you can decide if you need legal help or not. Here I give my opinion but in no way should it be taken as official legal advise. Only qualified immigration lawyers and the government can provide you with official information on what you need to know to marry a foreign bride.
When I met my future Filipina Bride, I went through what they called the K-1 process for us to get married. This was years ago and requirements have changed, but it still may be helpful as a guide.