What is the Sharia ruling on renting out a house for the purpose of selling alcohol? And what is the obligatory stance to take regarding a family that relies solely on this rental income as its only source of livelihood?

There is no harm in a Muslim renting his house to a Dhimmi for dwelling or for permissible uses. However, it is forbidden to rent it out for the purpose of being used as a church or a酒店 for wine, because that is a forbidden act. The landlord must prevent the tenant from selling wine in the house and should seek the help of Muslims in doing so. If she is unable to prevent him, there is no harm in accepting the rent, but she should not renew the contract with them. There is no harm in marrying this girl if she is righteous.