Final answer:
Planned development, condominium, time-share, and stock cooperative projects all involve multiple units or properties that are owned or shared by multiple individuals.
Step-by-step explanation:
Planned development, condominium, time-share, and stock cooperative projects all have in common that they involve multiple units or properties that are owned or shared by multiple individuals.
For example, in a planned development, a developer divides a piece of land into multiple lots or units, which can be sold or leased to individual homeowners. In a condominium, multiple units are owned individually, but there are also shared common areas and facilities that are maintained collectively by the condo owners. In a time-share, multiple individuals have partial ownership or rights to use a property for a specified period of time. In a stock cooperative, residents own shares in a corporation that owns the building or property, and each resident has the right to occupy a specific unit.