Key legal question
How to characterize the reservation agreement: brokerage contract or gratuitous mandate?
Extracted holding
The agreement was not a brokerage contract because no remuneration for brokerage was agreed; it was a gratuitous mandate.
Extracted reasoning
Brokerage under Art. 412 OR requires entitlement to remuneration. The agreement contained no payment for procuring the land sale or the work contract, and a possible third-party payment was not consideration from the principals.