Questão jurídica principal
Whether the amended lease and ancillary cost increase of 26 October 1993 were invalid for lack of formal notice or lack of objection.
Decisão extraída
The contractual amendment was validly concluded because the tenants knowingly and voluntarily signed the new lease without landlord pressure; the formal notice served at least to inform them of the right to challenge the increase.
Fundamentação extraída
No legally relevant pressure by the landlord was established. The tenants were aware of their legal options and did not challenge the increase, so they could not later rely on formal defects.