Ah, I see. So notarial acts are the "big picture" objectives, which have been legally vetted by the notary and will take place essentially automatically, and the contract concerns itself with the small details that could be litigated in court if needed.

That's quite an interesting way of dividing agreements, and if US States would pass enabling legislation to allow such "bifurcated" contracts, I could see some very real improvements to how cases get litigated here. As you said, an improvement would be better assurance that, say, a builder will be paid most of their compensation when the job is completed, and small complaints about the quality of the work can be adjudicated separately. Whereas in our current system, the payer can withhold all payments if they allege even a minor issue, and that sort of delay only results in higher building costs to everyone. The current contracts are also massive, with different criteria for when additional payments will be made. Having some firm dates for payments would make project planning easier, since even if the project is delayed, the payments should still be on-time.