The address of the Nationstar Mortgage corporate headquarters is 8950 Cypress Waters Blvd., Dallas, TX 75019, according to the company's website. The headquarters address is also the mailing address to send general correspondence. Information requests and notices of error are mailed to P.O. Box 619098, Dallas, TX 75261-974.
Overnight mail, including payments, is sent to 1010 W. Mockingbird, Suite 100, Dallas, TX 75247, according to Nationstar Mortgage. The mailing address for regular payments is P.O. Box 650783, Dallas, TX 75265-0783.
The customer service telephone number for Nationstar Mortgage is 1-888-480-2432, according to the company website. The telephone number for the Real Estate Owned Department is 1-888-708-4043. Both phone lines are open from 8 a.m. to 8 p.m. CT, Monday through Thursday, and from 8 a.m. to 6 p.m. CT on Friday. The REO Department is closed on Saturday, but customer service is available from 8 a.m. to 2 p.m. The company is closed on Sunday.
Additional contact information is available by clicking the Contact Nationstar link under the Contact Us heading at the top right of the Nationstar Mortgage home page. Current Nationstar Mortgage customers can contact the company via email by selecting a response from the drop-down menu options under the Still Need to Contact Nationstar heading and then signing in after clicking Continue. First-time users can click Register Now on the pop-up sign-in window.