Nothing personal, but I think your "training program" is lacking... sure you have the dog "attacking" when you tell it to, but is seems like you are having trouble getting the dog to stop!
Granted, I am not a trainer at all... but why do you have to hit the dog with a stick? To piss it off so it keeps attacking?
Like I said, I am not a trainer, but when viewing your video, and "looking" for this kind of service, I would probably keep looking... It just doesn't look to me like you are a professional, or have been doing this long enough for me to spend any money with you....
I am just giving you MY honest opinion here... and you know what they say about opinions and butt-holes... everyone has them!
I am not saying that you should do something else.. I am just saying that you should get some more experience, and some more dogs under your belt (friends, relatives?) before you start selling/training animals as a "professional"
Like I said, this is just my opinion... take it for what its worth, and I only hope that my opinion can help you from an outside view... I don't want to discourage you, I want you to excel. I just think that as of right now, its going to take more work.