I decided to work with them but this turned into a long process of approximately 6 months. 

After a couple of years of treading the path to frugality to build this financial runway, I've networked with the greatest people who made this all happen, of course, it took the strength, determination, time, etc to place myself where I am today but, without the mentorship of my two great mentors whom I wish used BiggerPockets so I can mention, I don't believe I would have made it thus far relying on some whimsical dream that this will all pan out accordingly, thank you for everything Greg and Lashawn.In addition, I would like to thank Bigger Pockets for connecting me with the greatest realtor @Stephen Schmitt Who took my dreams and aspirations to the core when we first connected and spoke about my future goals to replace my W2 job for financial freedom. within three months of me deciding to pull the trigger and get pre-approved, we found this killer cash-cow that apprised over purchase price!!! 

If you could do it differently, owner occupied is easiest to get a HELOC on and has the lowest interest rates.  

However if you are looking at commercial properties a lot of them will be owned by corps and then it will still be hard to find the actual owners!

Since I am super new to this, I do have a few questions:By testing the list, do you mean what data am I pulling (absentee owner, tired landlord, etc)Testing my mailer, do you mean trying different messaging?

For example in many jurisdictions I can STR units in a duplex but cannot STR an ADU (some jurisdictions will let you STR if you owner occupy).

Flagstar may exercise the "due on sale" clause if the name(s) of the buyer are not the same name(s) as the members identified as the owners of the LLC.

A 2 +1 is a legal 2-family with a boarder unit that can be lived in by the owner, usually without a stove and you want to make sure the bathroom is permitted.I hope that helps.

What are other ways to get this property with out having to owner occupy, FHA, conventional?

Like in many other markets, only a minority of owners can get such figures (if they have a special property that they bought at a good price years ago for example) but the average buyer/investor will be sorely disappointed if he/she hopes to reach those figures.