Case Study · Real Estate Data & Payment Processing

A $20M modernization program that started with an assessment

At LERETA — the second-largest property tax processor in the United States, handling $18 billion in annual tax disbursements — a five-year engagement set the architectural foundation for a program that could not have been sequenced without knowing what actually existed.

LERETA headquarters — second-largest US property tax processor, site of a five-year enterprise modernization engagement
$18B
Annual tax disbursement volume
40+
Stakeholder interviews conducted
5 yr
Total engagement duration
$20M
Modernization program scale
Shawn Livermore leading a working session with the LERETA technology team
About LERETA

The second-largest property tax processor in the United States

LERETA processes property taxes on behalf of major US mortgage servicers, handling roughly $18 billion in annual disbursement volume. The stakes of the technology platform were not abstract: tax payments that arrive late or to the wrong jurisdiction carry direct financial consequences for mortgage servicers and their borrowers. When the company's leadership engaged Shawn Livermore, the objective was clear — understand what actually existed before committing to a modernization program of any scale.

The engagement was initiated by the Chief Technology Officer at the oversight and endorsement of the Chairman of the Board — a signal of the program's strategic weight and the level of executive access the assessment team would need to work effectively.

The Assessment

40+ stakeholder interviews and wall-sized topology diagrams

The engagement began with a complete enterprise architecture assessment. Over four to five months, the team conducted more than forty structured interviews with technology architects, software developers, business analysts, database engineers, and executive stakeholders. Applications, servers, databases, and code were analyzed directly.

The output was a set of architectural deliverables — many printed on industrial plotters at wall size — that translated a sprawling, interconnected technology estate into clear visuals executive leadership could use to plan, budget, and sequence decisions. The mainframe-based systems were documented against the modern web applications running alongside them. Integration points were mapped. Technical debt was quantified. Dependencies were traced.

What the documentation said existed and what actually ran in production were not always the same. Finding the difference before a major investment was the entire point of the assessment phase.

Close-up of an enterprise application topology diagram — as-is logical application footprint
Shawn Livermore speaking in studio
On the LERETA Assessment
The most important thing an assessment surfaces is not what teams know is broken — it is what they have stopped seeing because they have worked around it so long. Every platform has assumptions baked into it that no longer hold. Finding those assumptions before a major investment is the whole point.
Shawn Livermore Fractional CTO · CAIO
LERETA property tax processor — redesigned delinquency management admin interface
The Modernization Program

A five-year engagement that shaped a $20M investment

Once the initial assessment was complete, LERETA engaged Shawn Livermore on the program that followed. Over five consecutive years, a team of more than 25 professionals delivered a sequenced modernization program across six project areas: enterprise architecture assessment, process automation via RPA, UI modernization of the flagship web application, redevelopment of two legacy desktop applications into a single modern web platform, and ongoing development leadership.

Sequencing decisions that appeared arbitrary from the outside were driven by technical dependencies surfaced during the assessment. Systems that the business wanted to migrate in a particular order could not be moved that way — because the sequence the business preferred would have disrupted $18 billion in property tax processing for major US mortgage servicers. The assessment made that visible before any commitments were made. That visibility was worth the cost of the assessment many times over.

Outcomes

What the engagement delivered

Architectural clarity before commitment

A complete, executive-ready picture of the technology footprint — applications, servers, databases, integrations, and the gaps between documentation and production reality — before a dollar of modernization was committed.

Board-level program endorsement

The assessment deliverables gave board representatives and executive stakeholders the specific technical grounding to authorize and oversee a multi-year, multi-million-dollar modernization program with confidence.

Sequenced migration without service disruption

Technical dependencies identified during the assessment determined the migration sequence — preventing a reordering that would have disrupted tax processing for major US mortgage servicers during the program.

Six project areas delivered over five years

EA assessment, RPA automation, UI modernization of the flagship application, full redevelopment of two desktop systems into a single web platform, and ongoing development leadership — delivered by a team of 25+ professionals.

The intellectual capacity and technical maturity of Shawn Livermore exceeded expectations.

Paul Larkin
Former Chairman of the Board, LERETA
Paul Larkin portrait
Product Design

Application screenshots

I personally designed and polished each user experience and helped the customer enact their desired business processes into their software.

Property Tax Processing Platform
Delinquency Management — admin view for overdue tax accounts and remediation workflow
Delinquency Management — admin view for overdue tax accounts and remediation workflow 1 / 3

Get the full case study

The complete case study documents the enterprise architecture assessment engagement — the stakeholder session structure, the diagram deliverables produced, and the specific technical dependencies that shaped the $20M program.

Man writing a flowchart diagram on a whiteboard with a blue marker.