Our Mission & Values
Mann Mortgage is a family-owned company that emphasizes community relationships, honesty, and integrity. Since our founding in 1989 by Don Mann, we have been committed to hometown values, solid partnerships, streamlined processes and cutting-edge technologies. Most importantly, we're committed to helping qualified borrowers in our communities fulfill the dream of home ownership.
The Mann Mortgage Story
In 1989, North Dakota native Don Mann hatched his plan to model a mortgage company after the 1950s era farming co-op. By pooling resources, lending could be kept personal and local. Don built the business on a foundation of integrity, relationships, and a genuine concern for family and community.
From a single loan officer in the late 1980s in Kalispell, Montana, Mann Mortgage has expanded to include 55 branch locations and 500 employees. Mann Mortgage co-op branches enjoy a strong reputation built on depth and breadth of expertise, and enduring industry partnerships.
Based on Don Mann’s original business model, we adhere to the basic philosophy that sharing collectively in the sale of our product benefits everyone. Volume speaks volumes, and for the next 30 years we'll continue to build on our original foundation as a trusted name in home lending.
Our Team

Don is a North Dakota native, having graduated from the University of North Dakota in Grand Forks. After college, Don worked for a bank and several Savings & Loans in Grand Forks before relocating to Kalispell in 1981. Don worked for several mortgage banking operations in Kalispell before launching Mann Mortgage in 1989. The experience Don has had working for "others" is the basis for the Mann Mortgage business model.
Don is a North Dakota native, having graduated from the University of North Dakota in Grand Forks. After college, Don worked for a bank and several Savings & Loans in Grand Forks before relocating to Kalispell in 1981. Don worked for several mortgage banking operations in Kalispell before launching Mann Mortgage in 1989. The experience Don has had working for "others" is the basis for the Mann Mortgage business model.

A Montana native, Jason graduated from the business school at The University of Montana in 1993. Jason is a second-generation mortgage banker, having joined Mann Mortgage in 1997 as an originator. Previously, he spent five years in the accounting industry. Jason operates his own retail branch, and understands first-hand the benefits of being a Mann Mortgage co-owner.
A Montana native, Jason graduated from the business school at The University of Montana in 1993. Jason is a second-generation mortgage banker, having joined Mann Mortgage in 1997 as an originator. Previously, he spent five years in the accounting industry. Jason operates his own retail branch, and understands first-hand the benefits of being a Mann Mortgage co-owner.

Thain joined Mann Mortgage in 2010, having previously spent almost two decades consulting a multitude of Fortune 500 companies in enterprise asset management. He brings over 25 years of IT experience from a wide spectrum of industries, placing a strong emphasis on data integrity, software functionality and systems security. He takes a balanced and common-sense approach to any given challenge, leveraging Information Technology into a competitive advantage.
Thain joined Mann Mortgage in 2010, having previously spent almost two decades consulting a multitude of Fortune 500 companies in enterprise asset management. He brings over 25 years of IT experience from a wide spectrum of industries, placing a strong emphasis on data integrity, software functionality and systems security. He takes a balanced and common-sense approach to any given challenge, leveraging Information Technology into a competitive advantage.

After graduating from the University of Virginia School of Law, Justin worked for firms in Dallas and Kansas City, specializing in corporate litigation. He also spent time as Midwest Regional Director for Kaplan Bar Review, heading up marketing efforts as well as training instructors and serving as a member of the national curriculum committee.
Before joining Mann in 2016, Justin served as Compliance Counsel for TruHome Solutions, a mortgage company that offers private label origination and servicing for more than 50 credit unions nationwide. At TruHome, Justin was instrumental in developing a robust compliance management system, including a new internal audit program, vendor management, corporate training, and an overhaul of company policy and procedure. Justin also led efforts to implement new federal regulations that came about as a result of Dodd Frank.
Justin’s volunteer experience includes CASA, Family Promise, and time as a licensed foster parent. Justin, his wife, and four kids are new to Montana, but embrace it as their home, spending as much time as they can in the beautiful outdoors.
After graduating from the University of Virginia School of Law, Justin worked for firms in Dallas and Kansas City, specializing in corporate litigation. He also spent time as Midwest Regional Director for Kaplan Bar Review, heading up marketing efforts as well as training instructors and serving as a member of the national curriculum committee.
Before joining Mann in 2016, Justin served as Compliance Counsel for TruHome Solutions, a mortgage company that offers private label origination and servicing for more than 50 credit unions nationwide. At TruHome, Justin was instrumental in developing a robust compliance management system, including a new internal audit program, vendor management, corporate training, and an overhaul of company policy and procedure. Justin also led efforts to implement new federal regulations that came about as a result of Dodd Frank.
Justin’s volunteer experience includes CASA, Family Promise, and time as a licensed foster parent. Justin, his wife, and four kids are new to Montana, but embrace it as their home, spending as much time as they can in the beautiful outdoors.

James brings more than 18 years of experience to the job of Director of Capital Markets. During that time he has worked exclusively in Secondary Marketing and the Capital Markets, spanning across retail, wholesale, as well as correspondent lending. Having worked as a Financial Analyst, Whole Loan Trader, Hedging Manager, and Secondary Marketing Manager, for Provident Funding, LoanCity.com, RPM Mortgage, and Chrisman LLC, he brings a depth of knowledge to his current role which is needed in order to allow for responsible strategies for product, pricing, loan sales, servicing, and corporate management. Currently responsible for overseeing our Secondary Marketing, Servicing, and Product Development departments, his central focus is on establishing the analytics, strategies, and internal controls which allow us to compete in an ever-changing mortgage environment.
A recent transplant to Kalispell, MT, James and his wife enjoy all the benefits of moving to such a wildlife-rich part of the country, enjoying hiking, fishing, skiing and camping in and around Glacier National Park. He has a B.S. in Economics from the University of California, Riverside.
James brings more than 18 years of experience to the job of Director of Capital Markets. During that time he has worked exclusively in Secondary Marketing and the Capital Markets, spanning across retail, wholesale, as well as correspondent lending. Having worked as a Financial Analyst, Whole Loan Trader, Hedging Manager, and Secondary Marketing Manager, for Provident Funding, LoanCity.com, RPM Mortgage, and Chrisman LLC, he brings a depth of knowledge to his current role which is needed in order to allow for responsible strategies for product, pricing, loan sales, servicing, and corporate management. Currently responsible for overseeing our Secondary Marketing, Servicing, and Product Development departments, his central focus is on establishing the analytics, strategies, and internal controls which allow us to compete in an ever-changing mortgage environment.
A recent transplant to Kalispell, MT, James and his wife enjoy all the benefits of moving to such a wildlife-rich part of the country, enjoying hiking, fishing, skiing and camping in and around Glacier National Park. He has a B.S. in Economics from the University of California, Riverside.

The Mann team added Cassidy O’Sullivan as Business Development Executive in late 2019 and promoted him to Chief Strategy Officer in 2020. Prior to joining, Cassidy amassed more than 20 years of experience in mortgage recruiting, sales strategies, company acquisition, managing teams, onboarding, marketing and branding at several mortgage firms. He has helped build many teams, including numerous originators, managers and C-level executives across the nation. Cassidy has designed and implemented sales, marketing, branding and onboarding strategies that have led to company growth, increased volume, improved efficiencies and enhanced retention.
Cassidy will be positioned centrally in Chandler, AZ with quick and frequent access to our numerous offices across the nation including the vibrant Flathead Valley in Montana. He enjoys finding adventures with his wife Amy, hiking, biking, golfing, working out, volunteering and exploring. He has a B.A. in Communication Arts from California Lutheran University.
The Mann team added Cassidy O’Sullivan as Business Development Executive in late 2019. Prior to joining, Cassidy amassed more than 20 years of experience in mortgage recruiting, sales strategies, company acquisition, managing teams, onboarding, marketing and branding at several mortgage firms. He has helped build many teams, including numerous originators, managers and C-level executives across the nation. Cassidy has designed and implemented sales, marketing, branding and onboarding strategies that have led to company growth, increased volume, improved efficiencies and enhanced retention. Cassidy will be positioned centrally in Chandler, AZ with quick and frequent access to our numerous offices across the nation including the vibrant Flathead Valley in Montana. He enjoys finding adventures with his wife Amy, hiking, biking, golfing, working out, volunteering and exploring. He has a B.A. in Communication Arts from California Lutheran University

Before joining us in 2020, Caleb garnered over 14 years of experience within the mortgage, finance and real estate industries. After graduating with his Masters in Accountancy from Colorado State University and becoming a CPA, he joined Ernst and Young’s Denver audit practice. As an auditor, he partnered with many companies through many complex GAAP and regulatory audits. He led multiple audit teams maintaining a focus on Financial Services/Financial Institutions industries including depositories, IMBs, Hedge Funds, PE Funds, Mortgage Servicers, and others. In 2013, Caleb took a ground floor opportunity as the SVP and Controller of Pingora Asset Management where he helped build Pingora to an organization that acquired more than $2 billion in MSR. As Controller, he built out and oversaw the Accounting, Payroll, Finance and Treasury teams. Through his experiences, Caleb has gained a wide breadth of experience with managing teams focused on accounting, analytics, reporting, human resources, payroll, operations and internal controls.
Caleb joins us with his wife, and two children who have made the move from Colorado to Montana and genuinely look forward to enjoying the outdoors and all Montana has to offer. They enjoy hunting, fishing, hiking and skiing.
Before joining us in 2020, Caleb garnered over 14 years of experience within the mortgage, finance and real estate industries. After graduating with his Masters in Accountancy from Colorado State University and becoming a CPA, he joined Ernst and Young’s Denver audit practice. As an auditor, he partnered with many companies through many complex GAAP and regulatory audits. He led multiple audit teams maintaining a focus on Financial Services/Financial Institutions industries including depositories, IMBs, Hedge Funds, PE Funds, Mortgage Servicers, and others. In 2013, Caleb took a ground floor opportunity as the SVP and Controller of Pingora Asset Management where he helped build Pingora to an organization that acquired more than $2 billion in MSR. As Controller, he built out and oversaw the Accounting, Payroll, Finance and Treasury teams. Through his experiences, Caleb has gained a wide breadth of experience with managing teams focused on accounting, analytics, reporting, human resources, payroll, operations and internal controls. Caleb joins us with his wife, and two children who have made the move from Colorado to Montana and genuinely look forward to enjoying the outdoors and all Montana has to offer. They enjoy hunting, fishing, hiking and skiing.











