(1) This system of taking resort on lease is not right. According to Sharia, it is necessary to settle the matter of rent at the time deciding the deal; otherwise the (dealing of) ijarah is cancelled. If at the same time the rent is fixed, this dealing shall be right.
(2) If your brother does not supply the wine etc but those who visit the resort carry it along with them, then the sin of drinking wine will not be on your brother.
(3) Mostly in resorts obscenity takes place and men and women visit it together; hence it is not right for a Muslim to run resort.
Allah (Subhana Wa Ta’ala) knows Best
Darul Uloom Deoband