If the property is empty you would sign them up to a lease/option contract to purchase the property for a period of time. I would try to get at least a one year term but to sell the house after you re-hab it should take at most 6 months. Be up front with the seller that you will be marketing the property to sell it or buy it yourself depending on your situation. You will have control of the property and in your contract you will have a set price to purchase it. You make a firm purchase price to buy the property for a set amount of time for a set price. While you have the home you must make monthly payments to the owner and they can be applied to the purchase or whatever you can negotiate with them. Lets say you set the purchase at 100,000. You can upgrade the home and sell the house to someone else for 140,000. If you double close you own the home for maybe a day or an hour and sell it to the new buyer. There are many ways to do it depending on the needs of the seller. I always try to make it a win-win situation and not take advantage of the seller. To protect yourself you can record the option contract at the courthouse so the seller cannot sell to someone else at the same time. There are several ways to do creative financing in the playbook but you must exercise due diligence to protect yourself in the event there are liens on the property, etc. Most title companies will do a search for you for a small amount of money. Research, research, research.