Mortgage Loan Originators: What They Do and How They Help

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By Lydia Kibet Updated September 15, 2025
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Edited by Erin Cogswell

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A mortgage loan originator will walk you through the loan process to ensure you get the right loan and close. The process of getting a mortgage can feel overwhelming, especially if you’re unfamiliar with how loans are originated, processed, and approved. The good news is that you don’t have to figure out everything alone with a mortgage loan originator on your side. 

Understanding their role, how they differ from other mortgage professionals, and how to choose a trustworthy one can save you time and potentially thousands of dollars.

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What is a mortgage loan originator?

A mortgage loan originator (MLO) is a licensed person who helps borrowers apply for and secure the right mortgage. They work with you to collect your financial information, explain different loan options, and submit your application to a lender. In short, they’re the person who initiates your mortgage loan process.

MLOs can be individuals (loan officers or mortgage brokers) or institutions (banks or credit unions) that originate loans. Their main job is to help borrowers choose the right loan program and ensure the process is as smooth as possible.

What does a mortgage loan originator do?

The first step usually involves assessing your finances. An MLO will take a close look at your income, credit, existing debt, and assets to get a clear picture of your financial health. Once they understand your financial situation, an MLO will explain the different loan options available.

MLOs also help you complete mortgage loan applications. Afterward, they handle the submission of your paperwork, making sure it reaches the underwriting team. Keep in mind that an MLO doesn’t decide whether to approve your loan—the lender’s underwriter makes that decision.

When you’re ready to move forward, your mortgage loan originator can help lock in your interest rate.

Types of mortgage loan originators

There are two main types of mortgage loan originators:

  • Mortgage banker or loan officer: These professionals work directly for a bank, credit union, or independent mortgage lender. They can only offer loan products from the institution they represent. For example, if you apply for a mortgage at your local bank, the person who helps you is a loan officer employed by that bank. 
  • Mortgage broker: A mortgage broker doesn't work for a specific institution or lender. Instead, they serve as a middleman between the borrower and various institutions. They shop around to find competitive rates and loan programs that fit your needs.

Both mortgage types of MLOs must be licensed and registered through the Nationwide Multistate Licensing System (NMLS), which you can search to verify their credentials.

​​Mortgage loan originator vs. underwriter

An MLO and an underwriter play essential roles in a mortgage loan process, but their responsibilities are different.

A mortgage loan originator is the person you work with directly to ensure that you secure the right mortgage that fits your needs. An underwriter, on the other hand, works behind the scenes to assess whether you meet the lender’s requirements and decide whether to approve or deny your loan through a process called mortgage underwriting.

How to choose a mortgage loan originator

Choosing the right mortgage loan originator can be the difference between an approved or declined mortgage application. Here are some tips for picking the right one:

  • Verify their license: Always check if an MLO is legally authorized to originate loans using the NMLS consumer database.[1]
  • Ask about experience: The right MLO has experience with different types of mortgages. If your financial situation is unique, working with an MLO who has worked with borrowers in situations similar to yours is crucial.
  • Get referrals: Ask your real estate agent, family, or friends if they’ve had a positive experience with a particular MLO. Also, online reviews from past clients can say a lot about an MLO. Consistent complaints about communication or surprise fees should raise a red flag.
  • Check their communication style: Pay close attention to how your prospective loan originator communicates with you from the start. How they answer your questions early on signals how they’ll guide you once the loan process begins.
  • Ask about fees: Make sure you know the lender fees, origination charges, and rate lock policies so there are no surprises later. A good MLO will be transparent about the costs beforehand and willing to explain how each fee works.
  • Watch out for pressure: A good MLO should guide you through your options, not push you into a loan you’re uncomfortable with. If you feel pressured, that’s a warning sign to step back.

Use Clever today to get matched with a top-rated real estate agent in your area who can help you find the right MLO for your mortgage.

Green flags and red flags to watch out for with MLOs

Not all mortgage loan originators are the same. When deciding whether to work with an MLO, pay attention to these signs:

Green flags:

  • They’re licensed and easy to verify in the NMLS database.
  • They take the time to explain terms clearly.
  • They’re transparent about fees, rates, and timelines.
  • They have positive online reviews or trusted referrals.
  • They respond quickly to emails and calls.

Red flags:

  • They pressure you to move forward before you’re ready.
  • They’re vague or evasive about fees.
  • They promise unusually low rates without explanation.
  • They’re hard to reach or slow to communicate.
  • You can’t find them in the NMLS database.

Bottom line : Get someone you trust on your side

A mortgage loan originator is your first point of contact when applying for a home loan. They gather your financial information, explain loan options, and guide you through the application process before it heads to underwriting. 

Choosing the right MLO can make a big difference in your homebuying journey. Always verify their license, pay attention to communication, and watch for red flags.

Article Sources

[1] NMLS – "Consumer Access,". Accessed Sept. 11, 2025.

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