As of 2015, the Nationstar Mortgage Holdings, Inc., corporate headquarters are located at 8950 Cypress Waters Blvd., Dallas, TX, 75019, according to NationStarMtg.com. Nationstar's mailing address is P.O. Box 619098, Dallas, TX, 75261-9741.
Nationstar's overnight mailing address is 1010 W. Mockingbird Suite 100, Dallas, TX, 75247, as indicated on the company's website. Individuals mailing payments should address the envelope to the attention of Payment Processing.
More contact information, including additional mailing addresses and telephone numbers, is available by clicking the Contact Us link near the bottom left of the home page, as noted on the website. Nationstar's customer service hours are 8 a.m. to 8 p.m. CT, Monday through Thursday. Friday hours are 8 a.m to 6 p.m. CT, and assistance is available from 8 a.m. to 2 p.m. CT on Saturday.