The purpose of the Brand Photography/Videography Services Agreement is essentially to protect you from being sued.
It also protects you from a client naming and shaming you on social media. Protects against theft of your intellectual property. Protects against chargebacks. Protects your privacy. And limits your liability.
You use this agreement any time you’re entering into a new client relationship or updating an existing one. In the agreement, you’ll lay out the specifics of your work together - duration, features (aka what’s included), payment schedule, refund policy - all the nitty gritty of your relationship.
That way, if things go pear-shaped, you’re not left with a bunch of bad reviews, loss of payment or loss of your intellectual property.