In Australian states and territories, the terms of commercial leases are generally not regulated by law, but by common law. This means that the parties to a commercial lease have a great deal of leeway to determine the terms of the lease themselves. For tenants, before signing a commercial lease, you can consider the following: when it comes to retail leases, you can request that the Small Business Commissioner of South Australia provide any disputes you have with your landlord or tenant. The Magistrates Court may also hear disputes concerning retail leases; However, if the request for money exceeds 100,000 $US, the Magistrate`s Court will refer the dispute to the District Court. For other commercial leases, you must go to court to settle the dispute. .