Playbook / Real Estate

How to automate vendor invoice processing and CAM reconciliation for property managers

A single property can run 10,000 vendor invoices through AP in a year. Each one has to be coded to the right expense pool, matched to a lease, and allocated to tenants by pro-rata share. Small coding errors in January become tenant disputes in December. This playbook shows how Rigby codes invoices as they land, keeps CAM clean all year, and assembles reconciliation packages tenants trust.

40%
Of CAM reconciliations contain material errors (PredictAP, citing BOMA and IREM)
10,000
vendor invoices a single 100-tenant property can process in a year (PredictAP, 2026)
$12.88
average cost to process one invoice by hand, vs $2.78 automated (PredictAP, 2026)
15 to 25%
average tenant dispute rate, vs under 5% best-in-class (PredictAP, 2026)
40+
hours spent monthly on manual CAM reconciliation (Datagrid, 2025)
The definition

What does it mean to automate CAM and AP for a portfolio?

An AI agent reads every vendor invoice as it arrives. It codes the invoice to the right expense pool and property, matches it against the lease, and calculates each tenant's pro-rata share in real time. By reconciliation season, the work is already done. A human reviews and approves. The agent does the coding, the math, and the backup package.
The cost of doing it by hand

Why CAM reconciliation goes wrong.

40%
of CAM reconciliations contain material errors (PredictAP, 2026)
PredictAP, 2026
100 to 500
miscoded invoices per property per year at a 1 to 5% manual error rate (PredictAP, 2026)
PredictAP, 2026
60 to 90 days
average reconciliation time, vs 30 to 45 automated (PredictAP, 2026)
PredictAP, 2026
15 to 20%
billing leakage recovered by mapping GL data to lease abstracts (Springbord, 2026)
Springbord, 2026
How it works

How Rigby runs CAM and AP.

Five steps, on the GL and lease data you already have.

01

Audit

An ops specialist learns your chart of accounts, your expense pools, your lease abstracts, and your exclusion and gross-up rules.

02

Schema

Rigby encodes each lease as structured fields. Pro-rata shares, caps, exclusions, gross-up triggers, and base-year terms.

03

Match

The agent reads each vendor invoice in any format, codes it to the right pool and property, and maps it to tenant shares as it lands.

04

Flag

Miscodes, out-of-pool expenses, ineligible costs, or lease ambiguities route to a human with the source invoice attached.

05

Run

A reconciliation-ready package builds all year. At true-up, statements and backup are assembled for approval. Every action is logged.

Scope

What it handles, and what it leaves alone.

We build this

  • Coding vendor invoices to expense pools and properties
  • Mapping costs to tenant pro-rata shares from lease abstracts
  • Building reconciliation statements and backup packages
  • Flagging ineligible and miscoded costs all year

Scoped carefully

  • Final statements go out under your approval
  • Ambiguous lease language is surfaced, not interpreted
  • Disputed allocations are flagged, never auto-resolved

We do not do

  • We do not pay vendors or issue tenant credits
  • We do not sign leases or set terms
  • We do not replace your property management system
Proof point

40% of reconciliations have material errors. Yours should not.

[TESTED-BY QUOTE GOES HERE ONCE A PILOT EXISTS]

CAM errors start at the AP desk, not at year-end. Rigby codes each invoice correctly as it lands and maps it to the right tenants, so reconciliation season is a review instead of a scramble.

Talk to our team
FAQ

Frequently asked questions.

Yes. Each property keeps its own chart of accounts, leases, and pools. The agent applies the right rules per property.

Clean CAM, year round.

Live in days. Rigby codes and reconciles. Your team keeps approvals and tenant trust.

Book a quick call