I have a peculiar situation. I own my home clear and free and have title in hand.?

However, I have not formally worked for the past couple of years while going to college. I have not needed to work since family is financially supportive and I had plenty of money to live. However, I would like to start a business and would like to apply for a HELOC. Now, I now I need a work history which I do not have to be approved. However, will a viable co-signer make a difference? What would be the co-signers responsibilities? Remember, my house is completely paid for. Thank you.