Operating partners focus on revenue growth, pricing optimization, labor efficiency, and procurement. CAM charges fall into a gap between the finance team and whatever real estate function exists (if one exists at all). The reconciliation arrives, AP pays it, and the overcharge compounds year after year across every location in the portfolio.
This guide covers why PE-backed companies are structurally exposed to CAM overcharges, how to add a portfolio-wide audit to the post-acquisition playbook, and how to present recovery results to your investment committee as an EBITDA improvement.
Portfolio CAM Audit: A systematic forensic review of common area maintenance charges across all commercial lease locations in a portfolio company, designed to identify recoverable overcharges at the location level and aggregate the EBITDA impact at the portfolio level. Sometimes covers pro-rata share errors, management fee overcharges, CAM cap violations, and controllable expense cap breaches.
Why PE Portfolio Companies Are Sitting on Recoverable CAM
Every acquisition inherits leases. Nobody reviews them for billing accuracy.
That sentence explains most of the problem. When a PE firm acquires a multi-location business, the due diligence process evaluates the lease portfolio for term risk, renewal options, and rent escalation exposure. What it does not evaluate is whether the landlord has been billing CAM correctly at each location for the past three to five years.
Here is why the overcharges accumulate:
Acquisitions inherit leases nobody audited
The seller was not auditing CAM charges either. Most middle-market businesses treat CAM reconciliations as a cost of doing business. The annual statement arrives, the controller or bookkeeper pays it, and the number flows into occupancy costs. There is no mechanism to check whether the landlord applied the correct pro-rata denominator, respected the management fee cap, or excluded capital expenditures that belong outside the operating expense pool.
When the PE firm buys the business, it inherits those same unaudited leases. The overcharges that started three or four years before the acquisition are still recoverable under most state lookback periods, but nobody knows they exist.
No centralized lease administration
Portfolio companies in the $20M to $100M revenue range rarely have a dedicated lease administrator. Lease files sit in a shared drive, a filing cabinet at headquarters, or scattered across location managers. Nobody has mapped each lease's CAM provisions against the reconciliation statements being received.
Without centralized lease administration, there is no system for comparing what the lease says to what the landlord bills. That comparison is the entire foundation of a CAM audit.
Revenue growth crowds out cost recovery
Operating partners are evaluated on growth. The 100-day plan focuses on pricing, same-store sales, new location pipeline, and operational efficiency. CAM charges at $5 to $12 per square foot per year do not look material at any single location, so they never make the priority list.
Small per-location savings create large aggregate EBITDA impact
This is the core insight that most operating partners miss. CAM overcharge recovery is not a single-location play. It is a portfolio multiplier.
| Per-Location Annual Overcharge | Locations | Annual Recovery | 3-Year Lookback | EBITDA Multiple Impact (10x) |
|---|---|---|---|---|
| $2,000 | 15 | $30,000 | $90,000 | $300,000 |
| $3,500 | 15 | $52,500 | $157,500 | $525,000 |
| $5,000 | 15 | $75,000 | $225,000 | $750,000 |
| $3,500 | 30 | $105,000 | $315,000 | $1,050,000 |
The one-time lookback recovery goes straight to the bottom line. The prospective annual savings compound into EBITDA for every remaining year of the hold period.
"I built CAMAudit because the math on multi-location CAM recovery is obvious once you see it, but almost nobody runs the numbers. Operating partners spend months optimizing supply chain contracts worth less than what they could recover from a two-week lease audit." - Angel Campa, Founder of CAMAudit
The 100-Day Plan Addition: CAM Audit as Low-Hanging EBITDA
Here is why it fits the 100-day window:
Low cost relative to recovery. Auditing 15 locations costs roughly $2,000 to $4,000 depending on lease complexity and document volume. Typical recovery runs 10x to 25x the audit cost. No other line item in the 100-day plan offers that return profile.
No operational disruption. A CAM audit does not require changes to store operations, staffing, pricing, or customer experience. It is a back-office financial recovery exercise that runs in parallel with everything else.
Start with open due dates. Rank sites by due date and file status. Review one group before adding more.
Creates leverage for lease renewals. Even when a landlord disputes the recovery claim, the audit findings create documented leverage for the next renewal negotiation. That leverage is worth more than the one-time recovery at locations approaching renewal.
Where to insert it in the playbook
The CAM audit should start in weeks two through four of the 100-day plan, alongside the financial reporting and vendor review workstreams. The operating partner or CFO assigns someone to collect lease files and the last three years of CAM reconciliation statements from each location. Those documents feed directly into the audit process.
By day 60, the audit results should be ready for the first investment committee update. By day 90, dispute letter drafts should be in progress for the locations with material findings.
How to Structure a Portfolio-Wide Audit
Running 15 or 30 audits as individual projects is inefficient. The value of a portfolio-wide approach is pattern recognition: the same landlord making the same error at multiple locations, the same lease template creating the same exposure, the same property management company applying the same incorrect calculation.
Step 1: Group locations by landlord
Start by mapping which landlord or property management company controls each location. A dental group with 18 locations might have 12 different landlords, but three of those landlords control two or three locations each. Those clusters are where a single finding multiplies.
Step 2: Prioritize by CAM intensity and year-over-year increase
Rank every location by two numbers: CAM cost per square foot and the percentage change from the prior year. Locations paying above $8/SF or showing year-over-year increases above 8% without a clear operational explanation should be reviewed first.
Step 3: Template the review
Every location audit checks the same set of rules:
- Pro-rata share denominator. Does the reconciliation use the denominator stated in the lease, or has the landlord substituted a different number?
- Management fee percentage and basis. Is the fee within the lease cap? Is it calculated on the correct expense base?
- CAM cap compliance. If the lease includes an annual or cumulative CAM cap, has the landlord respected it?
- Controllable expense cap. Are controllable expenses separated from uncontrollable, and is the cap applied correctly?
- Excluded expenses. Are capital expenditures, landlord administrative costs, or other excluded items appearing in the operating expense pool?
Step 4: Aggregate findings by rule type
After the individual audits complete, sort findings by detection rule. If pro-rata share errors appear at 8 of 15 locations, that is a systemic issue worth escalating differently than a one-off management fee problem at a single site.
Step 5: Calculate total recovery and EBITDA impact
Sum the one-time lookback recovery and the prospective annual savings separately. Both numbers matter to the investment committee, but they hit the financials differently.
Worked Example: 18-Location Dental Group Roll-Up
A PE-backed dental services organization (DSO) operates 18 locations across three states. The locations are split between medical office buildings (MOBs) and strip centers, with 14 different landlords. The business was assembled through a platform acquisition and two add-on acquisitions over 18 months.
No CAM audit had ever been performed at any location under any prior owner.
The portfolio profile
| Segment | Locations | Avg. SF | Avg. CAM/SF | Total Annual CAM |
|---|---|---|---|---|
| MOB locations | 7 | 3,200 | $9.50/SF | $212,800 |
| Strip center locations | 11 | 2,400 | $6.25/SF | $165,000 |
| Portfolio total | 18 | $377,800 |
Example review worksheet
Use the table as a plan. Replace each value with checked client data. The example is not a CAMAudit finding.
| Finding Type | Affected Locations | Avg. Annual Overcharge | Annual Total | 3-Year Lookback |
|---|---|---|---|---|
| Pro-rata share error | 9 | $2,800 | $25,200 | $75,600 |
| Management fee overcharge | 6 | $1,900 | $11,400 | $34,200 |
| CAM cap violation | 4 | $3,400 | $13,600 | $40,800 |
| Controllable cap breach | 3 | $3,490 | $6,300 | $18,900 |
| Total | $56,500 | $169,500 |
The audit cost depends on public audit-pack pricing and the number of property-year files in scope. The firm should model any recovery only from reviewed findings.
At the fund's 10x EBITDA target multiple, the $56,500 in annual savings represented $565,000 in additional enterprise value at exit.
Presenting CAM Recovery to Your Investment Committee
Investment committees care about EBITDA, margin improvement, and return on invested capital. A CAM audit presentation should be structured around those metrics, not around lease language or property management technicalities.
Frame 1: One-time recovery as a cash event
The lookback recovery is a one-time cash inflow. Present it as a line item in the value creation bridge: "CAM overcharge recovery, $169,500, collected Q2." It flows directly to EBITDA in the period received.
Frame 2: Prospective savings as recurring margin improvement
If a supported fix changes a future bill, track it on its own. State the lease term and cost input. Do not count a guess as cash paid.
Frame 3: EBITDA multiple impact
At a 10x multiple, every dollar of recurring savings creates $10 of enterprise value. A $56,500 annual savings creates $565,000 in value at exit. At 12x, it is $678,000. That framing makes a $3,582 audit investment trivially easy to approve.
Frame 4: Lease renewal leverage
Not every landlord will voluntarily refund overcharges. But documented findings create leverage at the renewal table. An operating partner who walks into a lease renewal with evidence of three years of management fee overcharges has a stronger negotiating position than one who walks in with nothing.
This lease fact may help a later talk with the landlord. Do not give it a cash value. Keep it apart from any paid result.
What to include in the IC memo
- Total one-time recovery (with confidence range)
- Annual prospective savings
- EBITDA multiple impact at target exit multiple
- Cost of audit vs. recovery ratio
- Number of locations with findings vs. total portfolio
- Top three findings by dollar value
- Recommended next steps (dispute letter drafts, renewal strategy updates)
Frequently Asked Questions
How much does it cost to audit CAM charges across a PE portfolio of 15 locations?
The cost depends on file count, lease terms, and review scope. Add current pack cost and staff time. Do not promise a return before you check the files.
When should a PE operating partner add CAM audit to the 100-day plan?
Start collecting lease files and CAM reconciliation statements in weeks two through four. The audit itself can run in parallel with other 100-day workstreams like vendor renegotiation and financial reporting upgrades. Results should be ready for the first investment committee update around day 60.
Which CAM bill issues can a PE firm check?
Pro-rata share denominator errors, management fee overcharges (fee-on-fee stacking or exceeding the lease cap), CAM cap violations, and controllable expense cap breaches. These four categories account for the majority of recoverable dollars in multi-location portfolios.
Does CAM recovery actually affect enterprise value at exit?
Yes. Recurring CAM savings reduce occupancy costs permanently, which flows directly into EBITDA. At a 10x exit multiple, $50,000 in annual CAM savings creates $500,000 in additional enterprise value. The one-time lookback recovery also improves cash flow in the period collected.
Can we audit CAM charges from before our acquisition closed?
In most cases, yes. Audit rights and lookback periods are defined by each lease, not by ownership. If the lease grants a three- to five-year lookback period and the prior owner never exercised it, the current tenant (your portfolio company) can still recover overcharges from years before the acquisition.
Sources
- BOMA International. Office and retail building operating expense benchmarks and CAM allocation standards. https://www.boma.org/
- IREM (Institute of Real Estate Management). Income/Expense Analysis reports for medical office buildings and shopping centers. https://www.irem.org/
- Tango Analytics. "Multi-Location Lease Administration: Reducing Occupancy Cost Leakage in Portfolio Companies." https://www.tangoanalytics.com/
This article is for informational purposes only and does not constitute legal, financial, or investment advice. Consult a qualified attorney, CPA, or real estate advisor for guidance specific to your portfolio, leases, and jurisdiction.
Request a partner-led CAM review to route the client's CAM reconciliation statements through CAMAudit. The scan checks each location against the client's lease terms for pro-rata share errors, management fee overcharges, CAM cap violations, and controllable expense cap breaches. request a partner-led CAM review.