From Property Talk Community Wiki

Flip

Flip is a term used to mean buy and and sell again quickly. The person flipping a property is able to purchase it at a low price, then onsell at a higher price. There is typically no renovation or improvement made during a flip, it is usually a straight buy and sell transaction.

Double Settlement is the ultimate flip meaning that the investor needs no money to make it happen, but sometimes an investor will need to hold a property for a period until a buyer is found. In this case the investor will require finance to purchase the property, and money to pay the holding costs until it is on sold.