To add to Gordon's comments...

Contracts are "Critical" key components of doing things Right in Most related business models in Today's...
http://www.google.com/search?hl=en&c...&aqi=&aql=&oq=

That and Having an Expert business or specialized Lawyer, legal advisor working with you throughout the whole process making sure you're Fully protected at all times...
http://www.hg.org/forms.html

Phil