I understand that if I was asking for a loan for a conventional owner occupier it's easier, but apparently they are more picky with investment properties.Short of waiting for another year or two to build up some history, what are my options? 

I'm not sure why it's something you'd never consider, because the two flippers I partner with (one in FL, the other in IN) are more than happy with 2 points origination, and 12% APR (with monthly interest-only payments) or 14% APR (with zero payments until balloon).Alone, the could not afford to carry inventory... to do more than one or two flips at a time.  

Unless the master is huge, I have a feeling most people would prefer to have the extra space in the master for other stuff.It may cost a bit more to move the plumbing, but unless you're seeing other houses in your area that have a washer/dryer in the master, it's probably better to spend the money and make the house more conventional.

Mainly not tying up one of my 4 conventional loans that I'm able to get. 

I have access to bulk inventory nationwide direct from seller.  

Maybe it has the positive effect of creating more inventory for long term renters but that seems negligible. 

Objective is to purchase a an owner occupied 3/2 duplex or triplex, with a 75-80% ARV (for under $325k; financing 80-85% via conventional mortgage via portfolio lender), in South (north of William Canon) or Northwest Hills of Austin, Texas that generates enough rental income to pay my mortgage, taxes, and expenses enabling me to live rent free for a year and then cash flows positive the year following (so I can purchase my next property).

Yes, my wholesale inventory is down compared to 2013/14 but I still have a ton of eager buyers.

But I want to be able to list homes the traditional way from leads I get from my marketing campaigns.I want to be able to tell callers, "hey I put your house under contract for 30k and find you a buyer in 30 days or less, or I can list the conventional way and possibly get you 45k if you dont mind waiting and paying closing costs"what do you guys think?

She still has a loan amount of 190,000 (conventional, fixed).