Write Best Practices for buyers

Here is a link to my book that I am working on www.outventing.com Please take a look so to understand what I am doing. Some of the service categories are as follows: Patent Search, CAD design, illustrators, animations, sell sheets, sourcing, and lead generation.

I am looking for experienced freelancers like yourself write about working with buyers and to develop "best practices" for buyers to work with sellers on freelancers platforms like People per Hour, Fiverr, Upwork, etc. I would love to see you talk to other freelancers for your research.

Think about the reader of the book (inventors)...what info could you provide to make their experience with People per Hour, Upwork, Fiverr more valuable, effective, etc.

Minimum of 2,000 words