Well, the answer is no. There is no such rules or regulations when it comes to making the initial security deposit. However, in some states, it is more of a standard. It can be anything from 2 to 3 months to 10 months. It varies from one city to the other and more or less negotiable. So, there is nothing to be worried about. No matter how much your state's standard security demand is, make sure to check it beforehand.