Do not multiply a one-unit model
Several properties can share the same location, tenant type, construction stage, lender or operator. That concentration can increase risk even when each unit looks reasonable on its own.
Review the portfolio as one balance sheet
Purchase basis, debt, current value evidence, revenue, occupancy, expenses, upcoming capital work and available cash should be reviewed together before another acquisition is added.
Think about the buyer at exit
Different asset types and price bands have different resale audiences. A portfolio should not assume that every property can be sold at the same time, at the same pace or on the same valuation basis.