Hello there,
The economy of a server is crucial to its gameplay experience, especially when so much of player engagement is of in-game monetary value.
Properties come into a really rare category in our economy, because unlike SA-MP we are incredibly limited to the number of properties we can offer to players. At early access launch, a mere 16 properties will be purchasable and instanced. These include apartments as well as office space, some of which include personal garages to store and retrieve your player-owned vehicles in.
We intend to add more instanced versions of properties once it become stable enough for us to do so. GTA V's properties occur in-world, and there is little to no interiors to work with due to the game's open world design. With this, we become vastly more limited and simply cannot realistically offer every single property in-game with the same immersive experience. Our aim here is to stay as close and true to the game's design as we can to offer the best experience with.