I would approach local banks and credit unions first.

Both can work, the VA caller requires more training since they will not be local but are way more cost effective.Let me know if you have any questions.

I met a new investor, with contracting experience, at a local real estate meet up and he is interested in doing a flip using a hard money loan, renting the property out to his girlfriend, then using a FHA loan to buy it so he can live in it.

While I do not personally have a contact in KC, I'd recommend using BiggerPockets' Find an Agent tool.Its a FREE service for BP members like yourself who are looking to expand your network and find local experts.Here, you'll be connected with an investor-friendly with knowledge/experience in your desired location(s). 

absolutely there are things that are specific to your area that he would recommend to attend your local reia but over all he give a immense amount of info from day one to the end so to speak.  

I would love to connect with realtors & discuss local market knowledge, recommendations & overall support.

I currently own a retail building I purchased years ago. 3 years left on the loan with a sub 4% interest rate.

Does it take into consideration all the local regulations (cannot rent for < 30 days for example?)

Just wondering if anyone who have dealt the similar situation and have any recommendations on local engineer firms and contractors who have experience in this kinda project.Thanks ahead!!!

Yes, you can rent by the room no matter how many bedrooms you have unless for some reason your local jurisdiction prohibits it.