Good insights on how to deal with fixed price/scope/time projects. Fixed-price, fixed-scope, fixed time contracts and projects tend toward lose-lose situations for both the customer and supplier; customers often do not get what they really need, and suppliers can easily lose money. [Agile contracts primer].
I’ve found these resources useful to learn more about the contracting:
“Agile contracts primer” by Tom Arbogast, Craig Larman, and Bas Vodde. Quite extensive and lots of advice.
10 Contracts for your next Agile Software Project (by Peter Stevens)