How do you sell property in GTA Online?

To sell property in GTA Online, a player must first own more properties than the game allows them to hold concurrently or decide that one of their existing properties is no longer needed. To initiate the sale, the player must purchase a new property. During the purchase process, they will be prompted to trade in one of their current properties if they are at their limit. At this point, they can choose which property they wish to sell. The value of the chosen property will be credited towards the new purchase, effectively selling the old property. However, players cannot directly sell a property without replacing it; they can only trade it for another. It's also important to note that not all properties will sell for their full purchase price; there will be a depreciation in value, and typically only half of the original purchase price is recovered through this trade-in process.