When it comes to flipping houses, real estate investors need to understand the to keys to pulling permits. The first item you must understand is whether or not you need a long form permit or short form permit. This makes a big difference and can significantly increase your time frame if it is a long form. The second key is asking your contractor if they have experience pulling permits in the town or city you're working in. It's not a deal breaker but this can streamline the process if they are familiar with the local inspectors.