I run a Turnkey real estate company in Boise, Idaho, which is the fastest growing city in the US.

I need to get as much cash I can so I can grow my portfolio.Equity: 50K What would be my best option and why: cash out refinance or home equity loan?

I see your in Magnolia, if you come across any park deals in the greater houston area , keep me in mind here, actively looking for the next deal and am an active MHP investor in the area and looking to keep growing. 

I am stationed in Raleigh NC but I am on a mission to grow/build my city (Wilson county) how can I find potential buyers looking to fund that area?

My best suggestion is just never give up and your network will grow! 

It also allows one entity to start small and grow into the other side.Pay is determined by market value, supply and demand.  

I recently started acquiring properties in the Cumberland County area and am working to grow my support team.

Beyond that- is the population in the area growing or shrinking?

There are not many people who are disciplined enough to save at the rate you have thus far.In this business both short and long term you either need money or access to it to grow and sustain, there is no way around that. 

If you are real and looking to grow but not for a handout you will be surprised by generosity.