Before you can really start shopping for a location, you need to make your business legal. You’ll want to sign your lease or purchase a property under the business’ name, not your personal name. In some cases, you may need a business loan which will require your business to stand as a separate entity. To make your business a legal entity in the U.S., you’ll need a business license and an EIN. An EIN will act as a tax ID number for your business. In the U.S., a business license can take up to two weeks to acquire, but you can obtain an EIN immediately, even when applying online.