Dataset Specifications

MISMO offers business domain specific views of the residential standards, otherwise referred to as MISMO datasets.  These views, or datasets, tend to be focused on a particular business domain and be derivatives of the larger MISMO model.  Datasets often are presented with a data dictionary, or list of terms and related descriptions, included in the specified domain, as well as, a technical description for how to represent the dataset.  The technical description may take one or more of many possible forms including a UML Class Diagram or an XML Schema or other representation.  Additional tools and resources may also be made available with MISMO datasets to support implementation and ease of use.  For more information and to access the specifications for a particular dataset select the name of a specific dataset from the list of MISMO datasets below.

Adverse Action Notice

This new dataset addresses the fact that there are a variety of credit denial documents in use across the mortgage industry. This MISMO solution standardizes the content and formatting of such documents to enable more consistent and efficient communication between lenders and consumers during the credit vetting process.

Industry Loan Application (iLAD)

A compendium of data points that are included in the Uniform Residential Loan Application (URLA), the GSEs Automated Underwriting System interfaces, as well as the existing Fannie Mae 3.2 file.  iLAD is expected to replace the many peer to peer data exchanges that currently utilize the Fannie Mae 3.2 file as a de facto data exchange standard.

IRS Form 4506-C

IRS Form 4506-C is used for requesting tax transcripts from the Internal Revenue Service (IRS). MISMO's new dataset provides a standard set of data points that map to Form 4506-C. In addition to the dataset for IRS Form 4506-C, MISMO created a dataset for the previously used IRS Form 4506-T.

Mortgage Compliance Dataset

The MCD specification is a conversion of a fixed format Loan Examination File (LEF) to the XML schema based MISMO Reference Model. As a companion to the MCD specification, MISMO has published a schema file to assist with development efforts. This includes all the data points that are not in the MISMO Version 3.6.0 Reference Model, the schema has been extended to support the MCD.

Private Label RMBS

The Private Label Residential Mortgage Backed Securities (PL RMBS) MISMO XML File Layout Specification supports the data used in the ratings applied to securitizations. This document provides the information needed for changes to be made so Rating Agencies, understand the data they will receive, and Third-Party Reviewers (TPR) have a roadmap for providing consistent and relevant data. 

Title and Closing Dataset Specifications

The trading of title and closing information is not standardized across the industry and often relies on the effective exchange of a document. The following data set specifications have been developed through volunteer collaboration in the Title and Closing Documents to Data Development Work Group

VA Form 26-1880 - Certificate of Eligibility

Veterans who complete and send in VA Form 26-1880 are applying for a Certificate of Eligibility. VA lenders need this document as proof that a veteran is eligible for a VA guaranteed home loan, which is based on credit and income requirements. The new dataset for VA Form 26-1880 Request for a Certificate of Eligibility will provide lenders and vendors with a MISMO-standard method for completing the form.

VA Form 26-8937 - Verification of VA Benefits

This dataset provides an industry standard for the transmission of the information required on the VA Verification of Benefits form, creating efficiency and improved interoperability.