Do most properties you buy cash flow positive?

[Bryan Tasumi]

Do most properties you buy cash flow positive? What percentage of properties that you purchase will cash flow positive when rented out? 95%, 90%, 80% or less? What is the risk of buying a property that does not cash flow positive? 

Do all condos and town homes in Texas cash flow positive? I am talking about in the Houston, Dallas, and Austin areas where the property taxes are high 2.6%+ and have high HOA fees.

I don't really understand the percentage of properties that cash flow positive and whether high property taxes in states such as Texas and high HOA fees always make the cash flow negative or what.

Any advice/insight is greatly appreciated. Thank you!