With residential leases, you are not going to use a lawyer all the time to set up a rental.  A commercial lease, however, is more sophisticated.

Residential landlords own the dirt and the building they are leasing out.  Commercial leases, however, have a lien on the stuff inside the building.  As a commercial tenant, you cannot just leave in the middle of the night.  Your landlord has a lien on your furnishings and equipment.

Also, unlike a residential lease, a commercial landlord can put a chain on your door in certain circumstances, denying you access to your property and rental space.

Do not get stuck in a lease you do not understand.  Whether it is residential or commercial, if you do not understand the terms of the lease, seek competent legal counsel to look over your shoulder.  An attorney who represents you and only you can help ensure you are getting wheat you think you are getting.