I have written my own.
The initial counsel from attorneys, former business leaders in executive positions and reviews from business friends assisted with the preparation of the final product. Prior to any submission, feedback from friends was received for word usage and additional topical information. The resultant review proved successful or where additional information was necessary for possible consideration.
I have used several for my own business dealings, not actively solicited payments from outside individuals or companies. But have assisted others with ideas, process on a verbal basis. But willing to listen to requests.
Biggest success would have been $250M bridge loan -- accepted and then rejected by EVP days later. Moved the stock price 4 points in one day during preparation of takeover.
Next -- founded
www.yellowpages.com (website and company), former VP Marketing, now owned by AT&T as $2.3B for their 51% and 4000 employees.
Several now in final development -- company off shore with worldwide website.
Let me know if you need assistance.