Generate a full detail guide for first-time business owners on navigating a commercial real estate lease. The guide must demystify legal jargon. It should include detailed explanations of: 1. Common lease types (e.g., Gross Lease, Triple Net Lease). 2. Critical clauses to negotiate (e.g., rent escalation, term length, subleasing rights). 3. A glossary of important terms (e.g., Tenant Improvement Allowance, CAM charges). 4. A checklist of questions to ask the landlord before signing. Please include a very strong disclaimer that this is not legal advice and an attorney must review the lease.