You can quickly see why looking at this graph - https://www.visualcapitalist.com/buying-vs-renting-house-in-...You can see how in 2015 the average mortgage was cheaper than the average rent, so it was easier to make the math work with light value add and just buying single family homes.

It is exactly what it sounds like, buying a property that has an existing debt on it.

So, is it possible to get an outright loan for say 100,000 and use that to buy, flip and sell a house for a profit?

Before you think you're getting in for zero down, have you asked what kind of cash reserves you have to have to qualify for the loan such as X number of months rent, and X number of months taxes, and what about insurance are they going to require you to buy one years of insurance or something.

I own one rental house in Cypress, but with the current market I have not been able to find another existing single family home to buy that looks like a good investment. 

Can someone explain something about the buy, borrow, die concept of avoiding income taxes? 

A lot of agents don't want to have to educate someone who is broke and has dreams of financial freedom through real estate just to find out you can't buy.

Investment Info:Single-family residence buy & hold investment.

It's also rare you buy these properties with 20-25% and have NOTHING you need to address almost immediately in terms of repairs or capex. 

These included cash buys for flips, seller financing, and subject-to deals.