To be a successful real estate investor over the long term, you need to understand each of these and how to use them to maximize your profits throughout the lifetime of the investment.There are certain conditions whereby I would buy a property with break even cash flow on day one ... in that case I would look to the other profit centers for my return initially ... for example I would buy below retail and remodel to force appreciation (2), and if I chose a well located property in a neighborhood with high demand and persistently limited supply of housing then with time and rent increases (2) and eventually paying off the mortgage (3) I would in the long haul get cash flow (3), and writing off interest, depreciation, etc. the whole time to lower my tax bills (4).

In the beginning, it's work and it takes persistence and dedication. 

Persist and you will win.  

Persist and you will win!

Persist and you will win!

Persistent, consistent contact. 

Let me know if the problem persists.

Bart has given an example of how persistance pays off and not giving up on the first answer of no.

But I will take it as lesson learn and move from this deal that is not worth the frustration and the aggravation.You have good persistence, but you want to make sure you apply it to the right scenarios.

Persistence pays!