Cornerstone first mortgage

built by top producers for
top producers

A Team You can trust

Sean Cahan


NMLS #309034

Erik Jorissen


NMLS #182785

about us

Cornerstone First Mortgage is a full-service mortgage bank headquartered in San Diego. All aspects of the loan process (processing, underwriting, and funding) are conducted in-house. We have grown exponentially over the past few years, and are always looking for driven and motivated individuals to join our team. Click here to see where we are licensed.

Our leadership

Our founders Erik Jorissen and Sean Cahan, use their 30+ years of combined experience to transform the origination process for the contemporary loan officer. As top producers in the industry, they are constantly looking for ways to improve efficiency so you can close more loans.

Our Promise

Our team is dedicated to delivering excellent customer service, communication, and accessibility. With consistent investment in innovative technology, we promise to enhance your business,so you can close more loans and improve your financial future.

Awards & recognition

what we offer

our Products

Our executive team continuously studies the industry to stay ahead of new trends and guidelines. Our product knowledge is unmatched, and we are able to offer every possible solution to get your client’s loan closed with ease. See an array of our product offerings below:

Loan Products

Agency Direct
• Fannie Mae
• Freddie Mac

• VA
• Reverse Mortgages

Renovation Loans
• HomeStyle
• 203K Full and Streamline

Non-QM & Jumbo

Non-QM & Jumbo

• Bank Statement, No Doc Investment Properties, Loans To LLC’s
• 10+ Financed Properties
• Investment Cash Flow
• Asset Depeletion
• 95% One Loan Jumbo To $2M, With No MI,10% to $2.5M
• Jumbo Investors: Wells, Chase, TIAA, US Bank, Fifth Third, First Bank, BB&T, Galton Funding
• Non QM Investors: Galton,Deephaven, Silvergate, Verus, Caliber, Bayview

Down Payment Assistance

Down Payment Assistance

• State Bond Programs: GSFA, CALHFA
• Nevada Home Is Possible
• Arizona Home in 5
• Texas Home Affordable (TSHAC)
• Florida Housing
• Georgia Dream Homeownership (GDHP)
Hover over the box to see more details.
Our custom-built Financial Services Cloud Salesforce platform is more than a CRM, it will transform the way you do business and communicate with your clients. Talk to one of our recruiters to schedule a demo!
Encompass is our LOS system that helps you structure loans efficiently. Our CEO and President are constantly building out Encompass to enhance the loan officer experience
Homebot is the post-closing follow up software of your dreams. Your clients receive a personalized digest on their home, with your branding, that helps them track and build wealth.
Blend is our custom built secure online application software that allows your clients to apply, upload documentation, and track the loan process with ease. They can sign their disclosures, submit their conditions, and communicate with you, all in one place.
Mortgage Coach is a Total Cost Analysis software that allows you to educate and advise your clients through side-by-side loan option comparisons. Create presentations from any device!
We’ve developed a custom employee intranet to help you stay connected and informed. Our intranet contains marketing and promotional materials, training classes, company processes, guidelines, and much more. Everything you need to succeed is located in one easy-to-access place.
what we offer

the best technology in the business

At Cornerstone, we use modern, streamlined tools to help you grow your business, stay organized and maintain efficiency. Your borrowers & realtor partners stay up to date every step of the way to give you more time to develop relationships. Our structure helps you keep track of your leads, deals, and closings so you can scale with ease. 

Learn from the best


the mortgage geek coaching program

This program is a comprehensive Loan Officer boot camp taught by our President and his team of experts. Sean Cahan’s careful methods have turned his hard work into over $100 million a year in personal production and he wants to show you how to do the same!

Our Loan Officers Receive 50% Off Professional Coaching!

Process efficiency

Turn times

24 Hours
Currently Underwriting:
Purchase and Refi’s: 11/27/2021
Re-Submissions:48 Hours on resubs (includes CTC)
Re-work loans will follow the initial submission timeframe
8 Business Hours
Docs received prior to 9am – same day.

Docs received prior to 9am – same day. Docs must be ordered 48 hours prior to scheduled closing date.
Around The Clock


  • Deal Desk & Structuring Manager
  • Guideline Specialist
  • Corporate Systems Trainer
  • Marketing Team
  • Income Desk
Build Wealth


  • Pick your compensation
  • Recruiting Incentives
  • 401K AND 401K Match
  • Health & Dental Insurance

Who we are looking for

Experienced Individual Loan Officers

We want to invest in high-producing Loan Officers, in all markets, who are looking to take their business to new heights!

Motivated Teams

Interested in coming over with your team? Great! We are always looking for driven leaders to expand their reach and grow
their team with us.

Branch Managers

Run A Net Branch: Run your branch like your own business! A Net Branch allows Branch Managers to set their margins for the market and control their own expenses. Inquire today about the advantages of our net branch opportunities!


At Cornerstone, we understand that your brand is your business! Check out the successful DBA’s we support under Cornerstone First Mortgage.

What our loan officers say


Some of the best in the business have decided to join Cstone First.

More questions?

We are here to help you 7 days a week and respond within 24 hours. Plus, you can find most answers to your questions right on this page.

© 2021 Cornerstone First Mortgage, All Rights Reserved. NMLS ID #173855 Equal Opportunity Lender.

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