Highest yearly ROI RE Investment Vehicle

[Dilini Sundaram]

Regardless of any other aspects (I know difficult to do). Solely looking at Cash on Cash return. What real estate method would you say has the highest YEARLY ROI? My research tells me short term vacation and/or flipping houses has the highest. To help answer the question: If you had 1 million dollars, and you provided the only income for the household how would you invest that money in real estate in order to provide the most profitable yearly net income? (Aka you take appreciation out of the equation, would just be a bonus since we are looking at net yearly income)