Pay for a rental Cash vs. Lending ???

[Steve Shupe]

I am a brand new member here on Bigger Pockets. I have read/ listened to a few of Brandon Turner's books and I get his philosophy but, I wanted to reach out to some others and get some different opinions. So I have yet to purchase my first rental property and I am struggling with this decision. Should I buy my first rental in cash or should I obtain a loan and only put down the required amount (25%)? Obviously the cash deal gets me highest cash flow, on the downside it will take a lot longer before I can do another deal?

What are your thoughts and keep in mind this will be my first rental and I am aspiring to purchase 15+ properties.