This sounds like a very simple way to sell your home quickly, however, if you are willing to owner finance, you should have no problem finding a buyer using the traditional, listing and selling process, plus a very good real estate lawyer to represent you!
Most likely, you will NOT receive payment in full at the time of closing like you usually do in a typical real estate closing . This will be a BIG question for you to ask before you proceed. If you don't receive full payment and can't payoff an existing mortgage, you may not qualify for an additional mortgage loan to purchase another home for yourself.
On the other hand, if you want earn interest, like the banks do when they give you a mortgage, this could yield a terrific return on your investment.
I don't know the terms and conditions Metrolina Lease Purchase LLC is offering. Know all the details AND consult a lawyer before signing anything with anyone, in this or any other real estate transaction.
Summary of my opinion: This could be a great option if you do not need a lump sum payout at closing.