Skip to content
CAMAudit.io
CAM Audit SoftwareLease Audit SoftwarePricing
Log inScan My Lease

Search This Pillar

CAMAudit.io

Forensic CAM audit software for commercial tenants. Find the money you're owed.

Product

  • CAM Audit Software
  • Lease Audit Software
  • CAM Reconciliation Software
  • Scan My Lease
  • Pricing
  • How It Works

Learn

  • CAM Charges Guide
  • CAM Reconciliation Guide
  • What Is a CAM Audit?
  • Resources Hub
  • NNN Fundamentals
  • Overcharge Detection
  • Lease Language
  • Dispute & Recovery
  • Glossary

Explore

  • Industry Guides
  • CAM Audit by State
  • Case Studies
  • Comparisons
  • Lease Types
  • Tenant Types
  • CAM Line Items
  • Free Tools

Company

  • About
  • Contact
  • Partners
  • Privacy
  • Terms
  • Disclaimer

Related Tools

  • Lextract: Lease Abstraction (opens in new tab)
  • CapVeri: CRE FinOps (opens in new tab)

Recovery of past CAM overcharges depends on your specific lease terms, including any audit rights deadlines or ‘binding and conclusive’ provisions, and on applicable state law.

State statute of limitations periods apply to written contracts and range from 3 to 10 years. Your actual lookback window may be shorter based on your lease.

CAMAudit is a document analysis platform, not a law firm, and nothing on this site constitutes legal advice. Consult a licensed real estate attorney before initiating any dispute or legal proceeding.

© 2026 CAMAudit. All rights reserved.

Scan My Lease
  1. Home
  2. /
  3. Resources
  4. /
  5. NNN Lease Guide

NNN Lease Guide

Understand triple-net leases, CAM components, pro-rata share, and common hidden fees. Essential guides for NNN tenants.

Essential Guide

Pillar Guide

Triple-Net Lease Overcharges: Patterns and Recovery

NNN tenants are overbilled on management fees, insurance, gross-up, and CapEx. Learn 7 overcharge patterns and how to dispute them. Free scan in 15 minutes.

Pillar Guide

NNN Lease Tenant Rights: 7 Protections Most Tenants Miss

Triple-net tenants overpay 15-20% on average because they skip audit rights and cap protections their lease already includes. See the 7 rights courts enforce.

In-Depth Guides

NNN Lease Red Flags: 12 Warning Signs Before You Sign

Before signing an NNN lease, watch for these 12 red flags: vague CAM definitions, missing exclusion schedules, no controllable expense cap, broad gross-up provisions, and short audit windows.

2026-03-11

Pro Rata Share Calculator: Verify Your Landlord's Math

Pro rata share errors are among the most common CAM overcharges. Use this guide to recalculate your percentage and catch denominator mistakes.

2026-03-07

Articles

Build-to-Suit Leases: CAM, NNN Exposure, and Audit Rights

Build-to-suit leases run 15-25 years with full NNN exposure. Know what CAM obligations you are locking in before construction begins.

2026-04-17

Sale-Leaseback in Commercial Real Estate: Tenant Guide

A sale-leaseback lets you sell your building and lease it back. Understand the CAM, NNN, and audit rights implications before agreeing to terms.

2026-04-17

Lease Audit Software for NNN Tenants: Operating Expense Checks That Matter

NNN tenants face overcharges beyond CAM: property tax, insurance, and operating expense errors need lease audit software built for triple-net billing structures.

2026-03-17

7 Hidden Fees in NNN Leases Most Tenants Miss (2026)

NNN leases pass more than taxes, insurance, and maintenance. See the 7 hidden charges landlords add and how to challenge each one.

2026-03-11

NNN Lease Audit: What to Review and When to Dispute

NNN lease CAM audit guide: what to review in a triple net lease, the 12 overcharge categories to check, and how to dispute billing errors.

2026-03-07

The Commercial Tenant's Guide to Triple Net (NNN) Leases

What NNN leases are, what the three nets actually cost, and what tenants routinely miss when reviewing their CAM reconciliation statements.

2026-03-07

NNN vs. Gross Lease: What Tenants Actually Pay [2026]

A direct comparison of NNN and gross lease structures, with worked examples showing what a tenant pays under each and when one structure is better than the other.

2026-03-07

What Is a Base Year in a CAM Lease? Definition and Tenant Risks

What a base year means in a commercial lease, how base year errors create permanent overcharges, and what tenants should verify before signing a modified gross lease.

2026-03-07

What Is Included in CAM Expenses and Charges? Complete Breakdown [2026]

What do CAM expenses include? Landscaping, parking, janitorial, utilities, management fees. Excluded: capital improvements, income taxes. Full list + what tenants commonly get billed incorrectly.

2026-03-07

What Is an NNN Lease? Complete Tenant Guide (2026)

What an NNN (triple net) lease is, how the three nets are calculated, what overcharges to watch for, and how to protect yourself before and after signing.

2026-03-07

What Is Pro-Rata Share in a Commercial Lease? [2026 Guide]

How pro-rata share works in commercial leases, how the denominator affects what you actually pay, and the most common ways it gets calculated incorrectly.

2026-03-07

Related Tools & References

Lease Types

  • Triple-Net (NNN) Lease
  • Modified Gross Lease
  • Full Service Gross Lease

Glossary Terms

  • CAM (Common Area Maintenance)
  • Pro-Rata Share
  • Base Year

Calculators

  • Pro Rata Share Calculator
  • CAM Cap Calculator

More Topics

Overcharge Detection41 articlesCAM Audits71 articlesReconciliation32 articlesLease Language43 articles

Frequently Asked Questions

Free scan · No account required

Check your landlord's math

Upload two PDFs. 14 detection rules. Under 15 minutes. Free.

Find My OverchargesSee a sample report first