Rejection of an objection to enforcement without security. Validity of an arbitration award. Validity of an arbitration clause in a condominium agreement even if the party has not signed it, due to the institutional nature of the contract. Absence of a requirement to sign an agreement to arbitrate when the arbitration clause is self-sufficient. Possibility of declaring a defaulting party in arbitration proceedings, which does not violate the principles of due process and full defense when the party has been duly served. Absence of a requirement for the signature of the secretary of the arbitral tribunal on the arbitration award for its validity: