Good ROI rates for rental property

[Carl R.]

I'm getting ready to buy my first investment rental property. Brandon Turner says he won't do a deal that doesn't yield at least 12% ROI. Does anyone have any thoughts on this and reasons or situations where you would accept less than 12% ROI on an investment rental property? For example, I'm 55 years old and have a successful optometry practice. I'm only looking at real estate investing as a way to supplement my retirement in 10 years as apposed to putting more money into a 401K.