The substantial cash need for large down payment or all cash that most others don't have .

I have been looking at properties and it seemed like the seller s  based their price on zero percent cash flow for the buyer.

Almost an impossible way to “get started” as you’re going to need full purchase price in cash on hand or a HML willing to instantly fund you. 

Are you starting with some available capital or other investments that you can turn into cash to buy a deal?

You will NEVER cash flow while living there but have a chance of cash flowing when you move out.

.$300k cash flow in 20 years is an ambitious but not unrealistic goal. 

I made a few deals in North Dallas.Special assessments and HOA fees are a risk and renting out a condo most likely won't generate much of a cash flow.At $300k with you credit and saving you can still qualified for a loan for sure we have to find the program that works for you.On that budget you could find a nice place no that far from work so you don't have to move far to the suburbs. 

.: Quote from @JD Martin: I can't possibly imagine what kind of townhouse could be worth all of that aggravation and cost.

Well, a lot of life happened and now I am getting back to zero no debt and I'll be renting for now and I am considering a duplex to buy cash or maybe land and some sort of unconventional home but still purchasing cash.

These can provide good cash flow and are easier to manage than larger commercial properties, especially when you're just starting out.Also, when I was starting, I found local meetups super helpful.