Learn About the Legal Intricacies of Personal Guarantees in Texas, Enforceability Criteria, and the Importance of Legal Consultation. 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. Personal guaranty 2024 of lease. Personal Guarantee in a Commercial Office Lease Texas Office. The landlord requires that I sign a personal guarantee, or provide a 6-month security deposit, to lease the space. Learn about Commercial property leases on Texas today. Quickly find answers to your Commercial property leases questions with the help of a local lawyer. Virtually tour our Dallas commercial properties for lease online. 2.