Don't expect your Homeowners policy to give you coverage.
The Business Owners policy provides broad coverages for buildings, personal property, loss of business income and extra expenses incurred to remain in business (after a fire or other covered cause of loss), premises liability and medical payments. If you have more than $1,000 of goods in transit, you will need to add additional coverage. Goods stored at other locations must be added to the policy, normally as an additional location.
You will need Workers Compensation Coverage for any employee - even part timers.
You may need Commercial Automobile Insurance if you deliver anything or if your vehicle is larger than a car, van or small pickup or if the vehicle is owned by a corporation.