Mortgage
Mortgage lenders eyeing DIY tech face governance traps that cost more than a vendor contract
By Real Estate Wire Staff, . Real Estate Wire.
The question mortgage lenders keep asking their technology teams is whether they can build a tool themselves. According to Melissa Langdale, chief executive officer and founder of Praxis Lending Solutions, writing in HousingWire, that is the wrong question. The right one is whether they want to own everything that comes with it: governance, security, compliance and maintenance, indefinitely.
Langdale identifies three reasons lenders reach for the build option, and a trap attached to each one.
The first is cost. AI-assisted development tools have made it genuinely easier to prototype something quickly and cheaply, she writes, but what gets built is often not a production-ready tool. "It's likely just a picture of a tool," Langdale writes in HousingWire. Scalability is typically absent, and so is the security and governance infrastructure that mortgage lending requires. Factor in long-term maintenance and the cost advantage narrows or disappears.
The second reason is revenue diversification. Some lenders believe a proprietary platform could be sold to other lenders, turning a cost center into a business line. Langdale does not dismiss the idea, but calls it harder than it sounds. A tool built for one shop needs multi-tenant hosting and genuine market differentiation before it can be offered to competitors, and those are not small engineering problems.
The third reason is AI governance. Because lenders are already held responsible for every AI platform they use, some conclude they might as well own the underlying system outright. Langdale acknowledges the logic but pushes back on the execution: she asks whether a lender could pass a SOC 2 audit, the independent security and compliance review that vendors routinely undergo and that regulators and counterparties increasingly expect.
Her practical guidance for lenders who want to stay in the mortgage business rather than become a technology company: build the quick internal wins that give teams an edge, build whatever creates a genuine competitive moat, and buy everything else.
The analysis here is straightforward. The governance argument is the one most likely to trip lenders up, because it sounds like a reason to build when it is actually a reason to be careful about either path. Owning a platform does not reduce regulatory exposure; it transfers the compliance burden from a vendor relationship to an internal one, and internal teams rarely have the audit infrastructure that established vendors maintain as a core business function. A lender that builds to escape vendor oversight may find it has simply moved the oversight problem inside the firewall where it is harder to see.
What Langdale's column does not address is where the line sits between a genuine competitive moat and a tool that only feels proprietary. That distinction matters because it determines which builds are worth the governance overhead and which are not. Lenders working through this decision would benefit from mapping their candidate builds against that question before the development budget is committed.
Source: https://www.housingwire.com/articles/mortgage-tech-build-vs-buy/