While there are sections of standard langauge in lease agreements, there is no "industry standard" except for a "net net net" option. Otherwise, details are negotiated between the tenant and property owner.
A commercial lease option allows a tenant to purchase a property at the end of the lease. The transcation and necessary fees are handled by an attorney.
All terms of a commercial lease are decided by the lessor and/or negotiated with the lessee. While a "net-net-net" option is not uncommon, it is not standard.