From my experience, We sold our house a lot less than we wanted, and paid all our debts. We came here with enough to buy a car, deposit on a rental and money to live for a few months.
My only regret was that we did not rent our house. You never know what can happen. You come here with all the intentions to stay and create a new life for yourself and your family, but sometimes things happen that are not in your control. I would say it's best to rent, just so you keep some more options open, should you ever need them.