First, is build a strategy action plan with client needs for be able to follow up the process and get the best results, especially when it's about an audiovisual production related with brand marketing. Each project is different, depends of what is need and how much time it required.
What the Seller needs to start the work
Description of the company or brand, the solutions that offer and which target-audience would like to focused, if it has been defined. Could be only the current situation is handled.
Also, please let me know the central objective or goal that want to get with the services, It could be: image position, reach the target-audience, call-to-action to get a promo or visit the website...
Additional information that can be value to know better the company or brand.