Are the brothers entitled to claim an apartment allocated by the state to the beneficiary of the old extended lease contract by court order, while these brothers own their own apartments?

The old lease with an open-ended duration is a void contract. The heirs are not permitted to demand its extension except with the owner's consent and for a specified period. If the contract is extended without the owner's consent and without specifying a duration, it is a sin, and the resident is in the position of an usurper. If the state compensates for the apartment with its own funds, there is no harm in taking it. The heirs have no right to the apartment compensated by the state, nor to the continuation of the old apartment's lease. If the extension contract was in the name of the tenant and the compensation came to him, no one has the right to dispute him, but the sin falls upon him if the contract was made without the owner's consent.