Case Study: MOMENI Group and Re-Leased
How MOMENI Group Built Finance Operations That Their Clients Trust
MOMENI Group, founded in 2004 and headquartered in Hamburg, is one of the leading privately owned and operated fund and investment managers, focusing on prime office and commercial properties in the inner-city locations of major German and selected European cities.
The Group manages more than €8.5bn in assets and operates across four closely interlinked divisions: Fund & Investment Management, Development, Real Estate Management, and Ventures its forward-looking arm investing in innovative digital and technological solutions for real estate. With offices in Hamburg, Berlin, Dusseldorf, Frankfurt, Munich, London and Paris, MOMENI combines deep local expertise with international reach and an uncompromising standard of quality, sustainability, and performance.
Diana Maier MARLA | Accountant
The Need for a System of Record
For Diana Maier, Accountant at MOMENI, the move to Re-Leased was about far more than software. It was about building a professional finance operation from the ground up, replacing a fragmented, manual setup with a single connected source of truth, and earning the kind of client confidence that most property businesses never achieve.
Before Re-Leased, there was no dedicated property management finance system in place. Occupier invoices were prepared in Word, saved as PDFs, and emailed manually. Documents lived on a shared drive. Reconciliation happened retrospectively by hand from scanned bank statements emailed to an external accounting firm.
Key challenges:
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No system of record: Operations ran entirely on Word, Excel, PDFs, shared drives, and email threads with no single connected platform.
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Manual reconciliation: Bank statements were scanned and emailed to accountants with no automated link between invoicing, payments, and the general ledger.
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High risk of error: Duplicate payments, mislabelled bills, and inconsistent records were a constant and costly concern.
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Limited capacity for value-add work: With so much time absorbed by manual processes, the team had little bandwidth left for the strategic and client-facing work that moves a business forward. Talented people were buried in repetitive admin chasing bank statements, cross-checking spreadsheets, manually matching payments leaving little room to focus on what truly matters: the portfolio, the tenants, and the growth of the business.
Why Re-Leased
MOMENI evaluated several platforms before choosing Re-Leased. The decision came down to one clear differentiator: Re-Leased is purpose-built for the business of real estate not adapted from generic accounting software and Credia AI is embedded from the ground up, not bolted on as an afterthought.
Diana’s first task was to make the implementation work properly. Working closely with the Re-Leased customer success team, she rebuilt the structure-end to-end:
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New GL accounts mapped precisely to the business
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Budget templates translated from German and configured in the platform
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Tracking categories set up to keep invoices tied to the right entities and clients
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A clean, reliable audit trail running across every transaction
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Connected Accounting with Xero linking Re-Leased to the general ledger and bank, replacing manual reconciliation with a fully embedded, real-time two-way sync
The Result: A Transformed Finance Operation
Diana now runs a complete end-to-end finance operation built on a single platform, with every tenancy, every supplier bill, and every payment flowing through Re-Leased and Xero in real time.
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One source of truth: Tenancies, invoices, payments, and supporting documents all live in Re-Leased; Xero handles the general ledger, information flows automatically between the two with no manual intervention.
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Audit-ready by default: Supporting documents are attached at the transaction level; audit no longer requires retrospective reconstruction - everything is already there.
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Duplicate payments eliminated: End-to-end visibility from invoice to bank receipt has removed what was previously a regular and costly occurrence.
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Supplier invoices on autopilot: MOMENI’s largest supplier sends 50–100 invoices per month; an Outlook rule forwards them straight into Re-Leased, where each bill is read, populated, copy PDF attached and linked to a maintenance task and approved project automatically.
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Credia AI for invoice and lease intelligence: Credia Extract automates the AP workflow, pulling key data from supplier invoices automatically. When questions arise about rent reviews, rent-free periods, or tenant recharges, the team asks Credia and receives an answer with a direct link to the exact clause in the lease.
“Asking Credia is so much faster than hunting through PDFs. Even if I just want a paragraph reference, it is right there. I tell my team, just speak to your lease. Ask what you want to ask.”
Adopting Change in Baby Steps
Diana is clear that the success of the rollout came down to pace. Trying to change everything at once would have broken the team. Instead, she ran the transition in deliberate stages:
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Started with the foundation: clean structure, GL accounts, budgets, tracking.
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Built out accounts payable next, layering in the Outlook rule and Credia Extract.
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Added maintenance task and project linking once the AP workflow was reliable.
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Brought the team along on Credia for lease setup, rent reviews, and recharge questions.
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Continues to assess what to automate next, from reporting to service charges to arrears.
“Baby steps. Start with one entity, apply the process you think will work, and then build from there. That is still the key for me.”
