[codatory]

Yeah; IANAL but I've spent a lot of time writing contracts for a specific vertical that have been reviewed by several lawyers, and I always built my contracts in this same structure. There would be a MSA that governs the overall relationship -- sets a baseline for what things cost and what their conditions are, and then there would be various contracts that would include the MSA by reference for enhanced or fixed-rate services.

Everyone preferred this structure that I dealt with, because the total length of the contracts were dramatically shorter and the structure was much easier to read and comprehend.