It is for sale by owner, but my realtor told me that the owner has an existing wrap loan on it.

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

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.

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

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

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

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. 

Yes, you both will be on the loan and it would increase your buying power.

On our most recent purchase, we bought a home with an assumable loan which allowed us to reduce our monthly mortgage payment by over $1,100 because we assumed a loan with a 3.08% rate instead of taking out a new loan (at that time) with a 7.5% rate!