Adhesion contract. Fiduciary transfer of collateral over real property. Arbitration clause authorizing the filing, before the judiciary, of a possessory action combined with a claim for occupancy fees and other expenses. In the case of an adhesion contract, it is improper for the arbitration clause to establish various scenarios in which the supplier that drafted the contract is authorized to seek relief directly before the courts, without being subject to arbitration, which is restricted to claims brought by the adhering party. "Use of the arbitration clause as a shield for the supplier when sued before the courts and its disapplication when the supplier appears as claimant, which would constitute a clear violation of the principles of equality and reasonableness." (Article 423 of the Civil Code). Admission of the complaint, which includes damages, restricted to the possessory action claim, on the grounds that it constitutes an enforcement measure that cannot be subject to arbitration: