Is the brokerage contract undertaken by the company for real estate investment permissible (halal)? Does the company's taking a fixed percentage for insuring the building against fire and disasters make it impermissible (haram)? Is it obligatory to inquire about the source of the one-month reservation of the property, and whether it is an interest-based (riba-based) loan? And does this make it impermissible (haram)?

A group sharing ownership of a property, renting it out, and dividing the rent is permissible. Similarly, contracting with an agent to manage the property for a known fee is permissible. It is permissible to offer the property for sale online and to collect money, provided that the money is returned to the contributors if the full price is not met. Attention must be paid to how the company reserves the property; if it is through an interest-based loan, then it is not permissible to deal with it unless the borrowing occurred prior to the transaction. Commercial insurance on the property is forbidden if it is optional, but permissible if it is mandatory by the state or if it is cooperative insurance.