FHA requires 3.5% down, regardless of whether you use the traditional FHA program or the FHA 203K program.So, unless you have a grant or some other combination program that provides your down payment for you, you will be required to put a minimum of 3.5% down.

6, why is that you cannot get a traditional mortgage loan for a flip?

I'd like to add that in addition to look at traditional ways to invest in real estate, look at some non-traditional.

Cash, traditional financing, something else?

The reasoning for doing this is I hear that FHA loans and other traditional mortgage loans takes much longer and are given less priority to sellers and I don't want to lose out on any good deals based on waiting for a loan approval.

Instead of just traditional homes and condos, I want to venture into the unique world of Airstreams, Tiny Homes, Shipping Containers, Treehouses. 

I personally have multiple plans-401k, multiple Roth and traditional IRAs, HSA, and several CESAs.

Roper's life: he appeared to live comfortably by renting out a series of apartments and even managed to sell that statement complex and buy a house and live without a traditional job.

Tax on the income is either deferred (Traditional IRA) or eliminated (Roth IRA).Rental real estate is an example of a type of real estate investment that can be a tax shelter on its own.

However, good properties are difficult to find using traditional methods.