The flip is a one time turnover based on a lengthy closing time in the land purchase contract. If you find a nice residential lot and it is undeveloped, but the area is going to become commercial area, and you can acquire a 12-month option to purchase this land. You may or may not initiate the process of rezoning, but you can immediately advertise the lot for sale as a potential commercial lot. You should be able to find a buyer who will make this deal with you, subject to rezoning. With sufficient time to accomplish the rezoning, or at least satisfy the buyer hat the rezoning is feasible, you will find that most often you can even assign your option,taking an immediately ptofits. You can buy and sell the land/property simultaneously in escrow at the time of closing.