I'v experience of Craig List posting for 3 years. All section of CL posting specially Service section.
1) All deliverables will be considered "work made for hire" under U.S. Copyright law. Employer will receive exclusive and complete copyrights to all work purchased. (No 3rd party components unless all copyright ramifications are explained AND AGREED TO by the employer on the site per the worker's Worker Legal Agreement).
I'v experience of Ms Excel, Ms word, Ms Visual Basic, SQL etc