I have 20k saved and plan to use an FHA 203K loan and house hack to net zero/cash flow minimally on my first investment.

Look into private finance, partnerships, FHA loans, and conventional loans.

The only thing is you would have to do a hard money loan, or find a private money lender that will finance you. 

Using private money to pay off the deed then looking into equity loans to rehab and purchase other properties.

Does anyone have a source for hardmoney or some type of house flipping loan they would recommend?

Assuming you have talked with the seller, I would ask for the requirements for assuming the loan. 

We are currently renting and our landlord has given us a great rent rate and we ideally want to focus on long-term rentals and utilizing BRRR for our portfolio.Our current market we live in is Las Vegas, NV which is a great city for growth, but it's been tough right now to find any cash flowing properties within our loan amount from our NV lender.

I got an estimate for an investment loan for a condo. 

Honestly, it's hard to get SFR to cash flow these days if you're getting a loan. 

They're currently trying to work with Congress to ease regulations on them (That are in place for a reason) because they are maxed out on margin but still trying to loan out money.