Real estate license needs to be renewed every 2 years. Sales Agents and Brokers need to complete atleast 18 hours of Continuing Education to become eligible for renewal. Dorothy Susan Langford has successfully completed following courses as part of qualifying and continuing education.
| Course Name (course number) | Course Provider | Course End Date | Hours |
|---|
| Legal Update II (33198) | Continuing Education for Licensing, Inc. | 2018-01-17 | 4 |
| Legal Update I (33197) | Continuing Education for Licensing, Inc. | 2018-01-17 | 4 |
| Short Sales and Foreclosures (30906) | Continuing Education for Licensing, Inc. | 2018-01-17 | 10 |
| TREC Legal Update & Ethics MCE (L&E) Includes both (26449) | Texas Tech University | 2014-11-21 | 3 |
| Fast Track Marketing (26875) | Texas Tech University | 2014-11-12 | 9 |
| IT'S GOOD TO BE GREEN (24344) | Texas Tech University | 2013-12-24 | 9 |
| TREC Legal Update & Ethics MCE (23560) | Texas Tech University | 2013-12-24 | 3 |
| TREC LEGAL UPDATE MCE (L) (ONLINE EXAM) (16504) | 1ST American Continuing | 2009-12-10 | 3 |
| TREC ETHICS MCE (E) (ONLINE EXAM) (16505) | 1ST American Continuing | 2009-12-04 | 3 |
| PERSONAL DEVELOPMENT STRATEGIES OF TOP PRODUCERS ONLINE (17931) | 1ST American Continuing | 2009-11-23 | 9 |
| CREATIVE PROSPECTING SYSTEMS TO GET MORE LISTINGS ONLINE (16114) | 1ST American Continuing | 2007-12-20 | 9 |
| TREC MANDATORY ETHICS UPDATE (E) (ON-LINE/EXAM) (14295) | 1ST American Continuing | 2007-12-11 | 3 |
| TREC MANDATORY LEGAL UPDATE (L) (ON-LINE/EXAM) (14296) | 1ST American Continuing | 2007-11-28 | 3 |
| MLXCHANGE INTRO (16028) | Austin Board of Realtors | 2007-10-10 | 2 |
| TREC MANDATORY ETHICS UPDATE (E) (ON-LINE/EXAM) (14295) | 1ST American Continuing | 2005-12-08 | 3 |
| THE ULTIMATE TIME MANAGEMENT COURSE (13907) | 1ST American Continuing | 2005-12-08 | 9 |
| TREC MANDATORY LEGAL UPDATE (L) (ON-LINE/EXAM) (14296) | 1ST American Continuing | 2005-12-01 | 3 |
| REAL ESTATE FINANCE II (412) | STATE UNIV OF NY COLLEGE TECHNOLOGY AT CANTON | 2003-11-26 | 30 |
| REAL ESTATE MARKETING I (511) | THE UNIVERSITY OF TEXAS SAN ANTONIO | 1999-07-23 | 30 |
| PROPERTY MANAGEMENT I (811) | TEXAS A & M UNIVERSITY | 1997-12-31 | 30 |
| REAL ESTATE MCE UPDATE (10407) | Austin Institute of Real Estate | 1995-10-26 | 3 |
| REAL ESTATE MCE UPDATE (10407) | Austin Institute of Real Estate | 1995-10-26 | 12 |
| KEEPING CURRENT WITH TEXAS REAL ESTATE (10163) | Austin Institute of Real Estate | 1993-12-10 | 9 |
| KEEPING CURRENT WITH TEXAS REAL ESTATE (10163) | Austin Institute of Real Estate | 1993-12-10 | 6 |
| MCE COMPLETE LEGAL UPDATE (10009) | Champions School of Real Estate, LTD | 1991-09-24 | 8 |
| MCE COMPLETE LEGAL UPDATE (10009) | Champions School of Real Estate, LTD | 1991-09-24 | 7 |
| ALL RELATED (EXCEPT R.E.) (6100) | SCHOOLS FROM WHICH RELATED CREDIT IS ACCEPTED | 1988-11-29 | 630 |
| REAL ESTATE MARKETING I (511) | ALICIA SMITH SCHOL OF REAL ESTATE | 1988-01-31 | 30 |
| REAL ESTATE MARKETING I (511) | American College of Real Estate, Inc. | 1987-02-28 | 30 |
| REAL ESTATE FINANCE I (411) | THE REAL ESTATE EDUCATION CENTER | 1985-11-30 | 30 |
| REAL ESTATE MATH I (611) | ALICIA SMITH SCHOL OF REAL ESTATE | 1984-11-30 | 30 |
| PRINCIPLES OF REAL ESTATE I (111) | ALICIA SMITH SCHOL OF REAL ESTATE | 1984-11-30 | 30 |