Family office advisors: CAM audit for commercial tenant portfolio holdings
Some family offices hold stakes in firms that rent space.
Many firms sign NNN or modified gross leases.
An NNN tenant may pay some tax and site costs. This may include insurance and upkeep.
Those bills can add up across many sites.
Most advisory teams track the real estate they own. Few check the CAM charges their companies pay. CAM means Common Area Maintenance. It is the cost to run shared parts of a property. That gap is your chance to add value.
Operating company (OpCo) in a family office structure: A business entity that conducts active operations and is held as a portfolio asset by the family office or its holding structure. Operating companies sometimes lease commercial space for offices, clinics, retail, or industrial use under NNN or modified gross leases. The operating company, as the legal tenant, holds all rights under the lease including the right to audit CAM reconciliation statements.
Who holds the lease and who can audit it
The operating company signs the lease, not the family office. The operating company is the legal tenant. The family office owns part of the company. But it is not named on the lease.
So the right to audit belongs to the operating company. You run the CAM audit as a service to that company. If you find an error, the company disputes it with its landlord. This is how any advisory firm works through a client.
Here is what that means in practice. You do not need to be named on the lease. You do not need to know the landlord. You collect the documents from the company. You run the review through CAMAudit. Then you hand the findings to company leaders to act on.
FASB ASC 842 makes this easier to spot. ASC 842 is the rule that puts leases on the balance sheet. Companies now report a right-of-use asset and a lease liability. They also report variable lease payments, like CAM charges. When a family office rolls up its reports, you see the total lease cost. You see the yearly CAM volume across every company. That total view is your audit map.
Why these CAM charges go unchecked
Some firms keep small finance teams. The CFO watches the business, not each lease.
At year-end, the landlord sends a CAM bill. It compares the billed amount with the landlord's stated costs.
The AP team may pay it. The team may lack time or tools to check it against the lease.
Your advisory team is different. You have the skill and the portfolio view. Say five companies each hold a commercial lease. Say none have ever had a CAM audit. The odds that real overcharges exist are high.
A lease may bar some costs. Do not use them in the fee base.
The base may be wrong if it includes barred costs.
Check each lease and bill. Do not promise a finding or a set recovery.
"I built CAMAudit because family office advisors are in a unique position: they have the financial sophistication to identify CAM billing errors and the portfolio view to see the aggregate exposure across all operating entities. Most of them have never applied that capability to lease billing verification." - Angel Campa, Founder of CAMAudit
Find your best audit candidates
Start with a portfolio scan. For each company, check if it holds a commercial NNN or modified gross lease.
The scan gives you a short list. For each candidate, note the company name. Note how many sites it leases. Note the yearly CAM spend per site. Note how long it has held the space. That length sets the audit rights window. The audit rights window is the time the lease allows you to review past bills. Last, note if the company has ever run a CAM audit.
The best candidates are simple to spot. They have never audited their CAM. They have held the space two or more years. They hold the most recoverable overcharges. They also have the widest audit window left.
Use yearly CAM spend to rank them. A site under $15,000 a year may not be worth the work. A site at $30,000 a year or more is a strong pick. At that level, common lease errors add up fast. Those errors include a wrong pro-rata share, a management fee overcharge, and capital costs billed as operating costs. Pro-rata share is the part of shared costs the tenant owes. Each error can mean thousands per site each year. Across five big sites with past-year rights, the total recovery is large.
If the family office uses ASC 842 at the company level, the work is easier. The lease costs and payment schedules already sit in the company books. You can pull yearly CAM data right from those disclosures. You do not need to ask the company for more.
How you run the audit, step by step
You do not do the line-by-line review. CAMAudit reads the documents, applies the rules, and checks the math. Your job is to lead the work. You collect the documents, review the findings, and guide the dispute.
Step 1. Collect the documents. For each company, ask its team for two things. First, the CAM reconciliation for each audit year. That means the current year plus any past years still in the window. Second, the key lease sections. Those cover the operating expense definition, the pro-rata share method, the management fee rule, the expense cap, and the exclusions list. An expense cap limits how much a charge can rise.
Step 2. Upload and scan. Send the documents through CAMAudit. The scan runs the CAM rules. Turnaround depends on file quality and review scope. It checks for management fee overcharge, pro-rata share error, gross-up violation, CAM cap violation, excluded service charges, and 9 more. A gross-up violation is when the landlord inflates shared costs as if the building were full.
Step 4. Deliver the findings. You hand the report to the company CFO or COO. With the white-label model, the report carries your firm's brand. With the white-label model, the report comes from CAMAudit, and you stay on for support.
Step 5. Guide the dispute. The company decides what to dispute. You can advise on how. Review the dispute letter draft with the client or their lawyer. Sort multiple findings by priority. Plan the next move if the landlord offers only a partial fix.
Make it a yearly habit at tax time
Each file has its own start date. Start when the CAM bill arrives.
Many firms do tax work early in the year.
Plan this review by the lease deadline, not the season.
Here is a simple plan. Add a CAM audit line to each company's yearly advisory work. The line covers four parts. You collect documents. CAMAudit runs the scan. You review the findings. You guide the dispute. Start the work within 30 days of the reconciliation each year.
This plan makes yearly checks routine. It also gives the team one process for all sites.
A lease may set a short audit window. Log each date and ask counsel about rights.
IRS Publication 535 matters for reporting. A recovered overcharge is a business expense correction. It lifts the company's net income in the year you recover it. Have the company's tax advisor confirm the tax treatment. The recovery itself is just cash back to the company.
Show the result in your family office reports
Family office reports pull together results from every company. A CAM audit recovery fits right in. List it as an operating efficiency win.
Here is a simple format for the principals. Use a heading like "CAM overcharge recovery." Below it, add a table. Show the company name. Show how many sites you audited. Show the total recovered. Show the period it covers. If you audited several companies, show the combined total too.
This format helps in three ways. The principal sees the full dollar impact. Your team's work shows up as a clear, measured result. And you keep a record. That record helps if the same landlord errors come back next year.
Some companies are PE-backed. For those, use the EBITDA format. EBITDA is earnings before interest, taxes, and depreciation. A recovered overcharge lifts EBITDA in the year you recover it. Back it up with the lease clauses and the math. This matters most for companies with debt covenants. It also matters for any company near a capital raise.
See white-label lease audit software for accounting advisors for delivery and branding options.
Sources
- AICPA. "Advisory services for family office practices." American Institute of CPAs. https://www.aicpa.org/
- FASB. "ASC 842: Leases." Financial Accounting Standards Board. https://www.fasb.org/
- IREM (Institute of Real Estate Management). "Income/expense analysis: commercial operating properties." https://www.irem.org/
- BOMA International. "Operating expense data for commercial buildings." https://www.boma.org/
- IRS. "Publication 535: Business expenses." https://www.irs.gov/publications/p535
- Tango Analytics. "Lease administration and CAM reconciliation industry data." https://www.tangoanalytics.com/
Disclaimer: This article provides general educational information about CAM reconciliation review and the CAMAudit service for family office advisory firms. It is not legal, tax, or accounting advice. The audit right described belongs to the operating entity as the legal tenant. Family office advisors should review specific lease terms, applicable audit rights provisions, and state law before initiating CAM audit activity on behalf of any operating entity. Consult qualified commercial real estate counsel for jurisdiction-specific guidance on dispute rights and recovery procedures.
Add portfolio CAM audit to your family office advisory practice. Review the white-label CAM audit service details at /partners/white-label.
Frequently Asked Questions
How does a family office advisor add CAM audit to their service scope?
The family office advisor identifies which portfolio companies and operating entities hold commercial NNN or modified gross leases. For each qualifying entity, the advisor facilitates document collection (CAM reconciliation statement plus relevant lease sections) and initiates the forensic review through CAMAudit. Findings are delivered to the operating company management for dispute action. The family office advisor can operate under the white-label model or the white-label model, where findings are delivered under the advisor firm branding.
Who holds the audit right in a family office structure?
The audit right is held by the operating entity that signed the commercial lease, which is the legal tenant. In a family office structure where operating companies are portfolio holdings, the right sits with each operating company individually. The family office advisor facilitates the audit on behalf of the operating entity management, but the dispute right belongs to the operating company. This is standard practice and does not require the family office itself to be a party to the lease.
How does FASB ASC 842 create visibility into CAM audit opportunities at the family office level?
Operating entities subject to FASB ASC 842 now report right-of-use assets and lease liabilities on their balance sheets. Family office consolidated reporting that aggregates across portfolio entities makes the total operating lease exposure visible at the family office level. Variable lease payments, including CAM charges, are disclosed separately. This disclosure creates a natural audit trigger: if CAM charges are material across the portfolio, they warrant verification.
Can findings be delivered under the family office advisor brand?
Yes. The white-label CAM audit service allows the advisory firm to deliver CAM audit findings reports under its own name and letterhead. Each operating company receives a branded findings document from the family office advisory firm, with CAMAudit operating as the forensic engine in the background. This positions the advisory firm as the provider and maintains the advisory relationship at the family office level.
How far back can a CAM lookback audit reach in a family office portfolio?
The lookback period depends on the audit rights clause in each operating entity lease. Most NNN leases provide a two to three year audit window. For operating entities that have held commercial leases for multiple years without a formal CAM review, the full audit rights window represents recoverable exposure. The family office advisor should review each entity lease individually to determine the applicable lookback period before initiating audit work.
Which CAM bill errors may affect a family office?
A lease check may flag the fee base or tenant share. It may also flag barred costs or a cost cap. Each finding must cite the lease and bill. CAMAudit checks 20 rule types.