A personal guarantee commercial lease is a legally abiding contract that makes a business owner assume personal liability for responsibilities and obligations. The personal guarantee likely binds you to personally pay the rental obligation, i.e., the contract amount. A lease guarantee commits the individual who signs it to pay the landlord throughout the duration of the lease. The personal guarantee in a commercial lease makes you, the tenant, personally liable for any rent your business's profits cannot cover. Reduce the Time Period – Many personal guarantees are signed for the term of the lease, which exposes you to pay all rent up to lease expiration. The Good Guy Clause is an important condition that protects both parties and is a personal guarantee between tenant and landlords. Operating expenses, real estate, taxes, insurance. Most leases are personally guaranteed. A commercial lease for office or retail space is a serious commitment for your business.