This document outlines 8 mistakes that start-ups should avoid in order to prevent legal battles. It recommends having legally binding founder agreements, complying with all legal and government requirements, establishing robust customer service and dispute resolution systems, making timely vendor payments, securing intellectual property, properly documenting employment terms, implementing terms of use and privacy policies for websites and apps, and hiring experienced legal counsel. The document provides contact information for a law firm that can help start-ups avoid legal problems.