This is ideal for investors with multiple properties or self-employed individuals, as it allows them to qualify based on the cash flow of the asset rather than personal tax returns or W-2s.2.

Would I qualify for a mortgage this size?

Depending on what you find available and how many possessions you have but it’s likely possible to find a decent sized duplex to purchase.

Some will list major employers, but often none of the residents work for any of those employers and likely never will due to income or location. 

I want to provide access through the common wall of the two units of a duplex. nothing fancy, sort of a "doorway" without a door, same size of a door.

-Depending on the size of the deal, I may be able to set you up with the deal/loan-even if you do not have experience.

We pay a percentage to our brokerages, have marketing and education expenses, and are self employed so we pay for our health insurance, gas, etc.  

Be careful how you size your investments and adjust for your level of risk and ability to withstand to loose on occasion...Good luck to all...Cheers!

I also believe that your Lot area has to be a minimum size in order for it to be considered "by right"I remember that some of the reasons why I didn't convert duplex to triplex:1.

@Natalie Johnstone My former employer who was a privately traded company that owned over a billion dollars of real estate and had an ancillary management business with revenues that exceeded $100M annually would sometimes form entities in Delaware because business cases are tried in front of a judge w/o a Jury and case law that's applied to decisions is very well developed in the State.