Direct lease space is more expensive and more stable while sublease space is less expensive but shorterterm in nature. Two of the main types of leasing arrangements are subleasing and direct office space leasing.The following will highlight each leasing arrangement. Subletting a commercial property is similar to assigning one, yet both transfer methods have very different outcomes. Subleasing is usually less expensive than direct leasing space. Some of this is because the original lease rate is set in the past. The difference between subletting and assigning a commercial lease is whether the original tenant is still legally responsible under the lease. Landlord and tenant are required to include their names in the lease agreement. 3. Lease can be either written or oral. The sublease may extend beyond the prime tenant's lease term.