Commercial General Liability Insurance is an inevitable part of your business insurance portfolio to save your business from a ton.What is commercial general liability insurance and why do you need it? Perhaps nothing will put you out of business faster than a liability lawsuit. This is because the dollar amount associated with liability lawsuits are often extremely high. Commercial General Liability Insurance or Business Liability Insurance will protect you against bodily injury or property damage your business is legally liable for. For example, if an individual is hurt on your property and sues for bodily injury, your policy will protect you against these types of claims.