'...shall not look..' : perhaps, the subject is the beneficiary or beneficiaries of the Will, as opposed to 'persons entitled' on intestacy. Anyway, unsure how to go into Polish, this I think means that they shall mind 'their own business' when it comes to how the sale price received is used (the executor can take a tidy commission / rake-off) and whether the executor - who has power to *postpone sale* - decides to do so indefinitely (and live in the property).
Normally, one executor acting as trustee must - as a matter of legaility - give a receipt for goods and chattels, but two executors / trustees for the transfer of real estate / land & buildings.
Again, the beneficiaries (?) need not concern themselves with that double-executor requirement. 'Less widely appreciated is the fact that a *sole* executor (if he is the only proving executor) can give valid receipt.'
https://www.step.org/step-journal/step-journal-april-2010/ch...