Lasting for 5 or even 10 years depending on the terms the landlord and tenant set, a commercial lease is usually much longer than a residential lease. A commercial lease will often list several people on the lease both as landlords or investors and the group that is renting the space. Each person that has a stake in the agreement should be listed.
You can pay a lawyer to draw up this agreement if you are a large company that has a big enough budget to cover the costs, but this is not necessary as you can do it for yourself. You can of course write out your own agreement using one of the many different templates that are available for download online. Both of these documents are completely binding in a court of law, the difference is the amount of money you are going to have to spend. Each of them must be signed by both parties and in many states notarized in order for them to be legally binding.