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- Nationstar Mortgage LLC
About Nationstar Mortgage LLC
Nationstar Mortgage LLC is an American mortgage company that operates primarily under the Mr. Cooper brand. The company provides mortgage servicing, home-loan account management, payment processing, escrow services, and other mortgage-related services.
A major ownership change occurred in October 2025, when Rocket Companies completed its acquisition of Mr. Cooper Group. Following the acquisition, Mr. Cooper’s servicing operations became part of Rocket’s broader homeownership platform, while Nationstar Mortgage LLC remains an important legal entity within the organization.
Mr. Cooper’s principal Texas operations remain associated with Coppell, Texas. The company’s mortgage-servicing business continues to support homeowners through account management, payments, escrow, and related mortgage services.
Quick Information
Industry
Mortgage Lending and Servicing
Legal Company Name
Nationstar Mortgage LLC
Brand Name
Mr. Cooper
Corporate Phone Number
1-888-480-2432
Customer Service Number
1-888-480-2432
Corporate Office Address
8950 Cypress Waters Boulevard
Coppell, TX 75019
United States
Headquarters Address
8950 Cypress Waters Boulevard
Coppell, TX 75019
United States
Mr. Cooper generally handles account support through secure online messaging and customer-service channels rather than a universal public email.
Parent Company
Rocket Companies
NMLS Number
2119
Main Services
Mortgage Servicing and Home Loans
Website
Nationstar Mortgage / Mr. Cooper Products & Services
Mortgage Servicing
Mr. Cooper manages mortgage payments and loan accounts for homeowners.
Online Mortgage Payments
Borrowers can make payments through MrCooper.com.
Escrow Management
The company manages eligible tax and insurance escrow accounts.
Loan Assistance
Borrowers experiencing financial hardship can access available mortgage-assistance resources.
Mortgage Statements
Customers receive account statements and can access digital loan information.
Home Loans
Mr. Cooper provides mortgage-related lending services, while Rocket Mortgage also operates within the broader Rocket Companies organization.
Digital Account Management
Borrowers can review balances, payments, statements, and other account information online.
Nationstar Mortgage Corporate Phone Numbers
Mr. Cooper Customer Service
1-888-480-2432
This is the main customer-contact number associated with Nationstar Mortgage LLC d/b/a Mr. Cooper. (mrcooper.com)
Account Services
Customers can use the same main support channel for many payment and servicing questions.
Formal Notice of Error / Request for Information
Mr. Cooper uses a dedicated mailing address for formal mortgage servicing notices rather than ordinary Customer Service.
How to Reach a Real Person at Mr. Cooper
Call:
1-888-480-2432
Have:
- Loan number
- Property address
- Borrower information
- Payment details
- Escrow information
- Correspondence
- Description of the issue
ready.
Borrowers can also sign into their Mr. Cooper account for account-specific assistance.
Nationstar Mortgage Headquarters & Corporate Office Address
Mr. Cooper / Nationstar Mortgage Office
8950 Cypress Waters Boulevard
Coppell, TX 75019
United States
Mr. Cooper’s current website continues to publish this address. (mrcooper.com)
Notice of Error / Request for Information
Mr. Cooper
P.O. Box 619098
Dallas, TX 75261
This address should be used when the applicable mortgage-servicing rules require a formal written notice rather than an ordinary customer-service complaint.
How to File a Complaint Against Nationstar Mortgage / Mr. Cooper
Step 1: Contact Customer Service
Call 1-888-480-2432.
Step 2: Request Account Review
Explain the payment, escrow, servicing, or loan issue.
Step 3: Use Secure Account Support
Submit account-specific communications through your authenticated account.
Step 4: Send a Formal Notice When Required
For qualified servicing disputes, use the official Notice of Error or Request for Information address.
Step 5: Contact Mr. Cooper in Writing
Mr. Cooper
Attn: Account Services
8950 Cypress Waters Boulevard
Coppell, TX 75019
Step 6: Keep Complete Mortgage Records
Retain statements, escrow notices, payment confirmations, and correspondence.
Step 7: Regulatory Complaint
Serious unresolved mortgage-servicing complaints may be submitted to the Consumer Financial Protection Bureau or other appropriate mortgage regulator.
