Product Features


LendingQB is integrated with Fannie Mae's Desktop Underwriter® and Freddie Mac's Loan Product Advisor® for automated underwriting, alongside LendingQB's custom automated underwriting engine, Total Decision Engine.

Total Decision Engine

The Total Decision Engine combines automated underwriting, product pricing, closing cost fee generator and margin management into a single comprehensive tool. Fully accessible via our open API. Including the ability to price mortgage insurance. 

Mortgage Credit Link

MeridianLink's Mortgage Credit Link is a data services hub that connects LendingQB to credit reports, settlement services and all Day 1 Certainty® data verification services.

LendingQB provides a data connector known as an Open API that enables virtually any 3rd party bi-directional, web service access to our database and a range of specific functionality. By far the most accessible and advanced LOS API in the industry.

LendingQB is connected to a range of vendor partners using our Open API. Document vendors, point-of-sale platforms, appraisal vendors, title policies and many other services are seamlessly embedded in the LOS.

Loan Origination and Processing

LendingQB mortgage origination system is designed to foster rapid communication between originators and processors. Data and uploaded documents are exchanged in real-time. Multiple users can simultaneously access and edit loan files.


Gather, share, edit and package documents uploaded into the LendingQB. Even attach Documents directly to conditions. EDocs is Open API accessible, seamlessly extending document capabilities to 3rd parties.


With 12 point-of-sale vendors integrated utilizing the Open API, LendingQB offers a variety of platforms that seamlessly transmit data, documents, and services directly to the LOS.

TPO Portal

LendingQB provides wholesale and correspondent lenders with a robust portal for uploading, pricing and document submissions from third party originators. All features of the TPO portal are accessible via Open API.

Secondary Marketing

LendingQB Secondary Marketing tools provide complete control over rate locks and pricing in addition to advanced features such as historical pricing and margin management.

Closing & Funding

LendingQB is integrated with multiple providers of closing documents and e-closing document services. Funding data is gathered throughout the process to ensure quick and easy generation of purchase advice.

The Total Decision Engine

An Intelligent Automation Engine Deeply Woven into Every Aspect of the LOS

Automation at the Heart of the LOS

An LOS Built Around an Intelligent Automation Engine

The Total Decision Engine utilizes rules-based logic to allow for deeper automation than the average pricing engine. TDE can fully parse and process a borrower's entire credit report to generate highly accurate automated underwriting decisions for both QM and Non-QM loan products. Accurate closing cost fees are generated using a combination of integrated services and a rules-based fee engine. Scenario and borrower-specific underwriting conditions are generated automatically using data-driven rules.

Seamless Workflow Integration

The Total Decision Engine is natively built by LendingQB, allowing it to interact throughout the entire mortgage workflow.

  • Locks submitted through TDE appear instantly in LendingQB's secondary module.
  • Closing cost fees generated by TDE feed directly into LendingQB's TRID framework.
  • Rules-based conditions not only appear in LendingQB's conditions module, but also integrate with eDocs to allow attaching imaged documents directly to conditions.

Borrowers, loan officers, processors, underwriters -- virtually every member of your operations benefit from using Total Decision Engine.

QM & Non-QM Support

LendingQB's Total Decision Engine is uniquely qualified to support both QM and Non-QM loan product types. TDE is fully integrated with Fannie Mae© Desktop Underwriter® and Freddie Mac© Loan Product Advisor® automated underwriting engines for QM loans.

The ability to fully parse credit report data allows TDE to generate comprehensive automated underwriting decisions for Non-QM loan products to a degree that is not possible with a typical product and pricing engine (PPE). Parsing credit report data eliminates false-positives and produces loan eligibility decisions on Non-QM loans with uncanny accuracy. Rules-based conditions add to TDE's capabilities and allow it to be officially designated as an automated underwriting system (AUS).

LendingQB maintains a library of pre-built correspondent investor products for both QM and Non-QM product types.

  • Complete Credit Report Data Parsing
  • Automated Pricing Engine
  • Automated Underwriting Engine
  • Automated Conditions Engine
  • Closing Cost Fee Service Engine
  • Automated MI Pricing
  • Desktop Underwriter®/Loan Product Advisor® Integration
  • Available via API
  • Historical Pricing
  • Overnight Price Change Notifications
  • Rate Locks & Extensions
  • Front End and Back End Pricing
  • Pre-Built Investor Program Library
  • Custom Loan Product Support
  • HELOC and Closed End 2nd Support
  • Combo Loan Support 
  • PMI/MI Pricing

More Product Features

The Modular Approach

LendingQB is developing role-specific modules that enhance user efficiency without impairing usability. By isolating each role with a standalone module, LendingQB enables the specialization of tasks that streamlines workflow while reducing input errors and training costs that occur due to overly complex user interfaces.


Module for loan originatiors to create loan applications, run AUS and Total Decision Engine, create disclosures and track pipelines.

TPO Portal

Provides third-party originators with online access to upload or create loans, run AUS and TDE, order integrated services and track pipelines.

Consumer Portal

Provides borrowers with the ability to track the status of their loan and upload documents.

The Best-of-Breed Approach

LendingQB has integrated with more than 250 vendors using a "best-of-breed" approach. We believe our clients should be able to select the vendors that work best for them, instead of vice versa. Our Open API framework allows us to build integrations with relative ease and a multi-tenant database architecture enables instantaneous distribution of any integration to every single one of our users.

We provide clients with direct access to our Open API framework. Lenders can build their own proprietary modules and connect to LendingQB, providing an extensible framework for lenders to create their own 'solution stack' of components: Point-of-Sale, CRM, accounting system, servicing platform, etc. LendingQB has the most mature and robust API framework of any mortgage LOS.


LendingQB is designed to be 'extendable'. Our OpenAPI not only integrates, but allows dynamic functions to be triggered using webservice calls: pulling credit reports, running Total Decision Engine, uploading documents, generating disclosures, etc. This level of platform extendability is crucial to a Digital Mortgage Lender's success.

Michael Wilson

Chief Operations Officer of iServe

  • "LendingQB’s LOS system is very intuitive. We are able to easily understand its features and processes. The system has proven itself to be a reliable ally in an industry that is rapidly changing. We rarely encounter moments in which the LOS isn’t able to function at its maximum capacity. LendingQB also makes continual enhancements which keeps our process optimal."

Find out more about LendingQB

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