Is it permissible to buy and sell by means of a lottery, especially when selling shares in a real estate owners’ association, where units are allocated by lottery and the price of the share differs from the price of the unit obtained?

The "union of owners" refers to a group collaborating to purchase land and build upon it, or to acquire real estate, and then dividing it by lottery and mutual consent. If the lottery adheres to Sharia-compliant regulations, there is no objection to it. The division entails that each party owns their share and disposes of it as an owner disposes of their property. Thus, they independently own their share after the division, and have the right to all dispositions affirmed for the absolute owner, such as selling, leasing, mortgaging, building, and demolishing.