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Murphy & McKinney Law Firm: One of Only Two Texas Attorneys Dual Board Certified in Criminal Law and DWI Defense
Doug Murphy is one of only two attorneys in the entire state of Texas who holds Board Certification in both Criminal Law from the Texas Board of Legal Specialization and DWI Defense from the National College for DUI Defense — a documented, independently verifiable dual credential rather than a marketing claim, and the clearest differentiator of a Houston Heights defense practice built specifically around fighting DWI and criminal charges.
At a Glance
| FIRM | Murphy & McKinney Law Firm, P.C. |
| ATTORNEYS | Doug Murphy (Marshall Douglas Murphy) and Christopher M. McKinney, both Board Certified in Criminal Law |
| OFFICE | 902 Heights Blvd., Houston, TX 77008 |
| EXPERIENCE | Doug Murphy licensed since 1999 (26+ years); Chris McKinney is a former felony Special Crimes Prosecutor for Harris County |
| PRACTICE | DWI defense and criminal defense, misdemeanor through felony, in Harris County and surrounding counties |
| CERTIFICATION | Doug Murphy: Board Certified in Criminal Law (Texas Board of Legal Specialization) and Board Certified in DWI Defense (National College for DUI Defense) — one of only two Texas attorneys with both. Chris McKinney: Board Certified in Criminal Law (TBLS) |
| RECOGNITION | Best Lawyers “Lawyer of the Year,” Super Lawyers selection 2009 and continuously 2013–2025 |
Origin and Background
Doug Murphy earned his law degree from Texas Southern University Thurgood Marshall School of Law, was admitted to the State Bar of Texas in 1999, and has practiced DWI and criminal defense in Houston for more than 26 years. His State Bar record shows no misconduct findings. His partner, Christopher M. McKinney, is also Board Certified in Criminal Law by the Texas Board of Legal Specialization and previously worked as a felony Special Crimes Prosecutor in Harris County — the third-largest county in the country by population — giving the firm a prosecution-side vantage point on how Harris County courts actually build and try DWI cases. The firm’s office sits in Houston Heights, inside the city of Houston proper.
Practice Concentration
The firm concentrates on DWI defense across the full range of severity — first-offense misdemeanor through felony repeat-offense DWI, intoxication assault, and intoxication manslaughter — alongside broader criminal defense work including drug crimes, assault, federal charges, and white-collar allegations. See this Houston DWI/DWI Defense directory for how this dual board-certified practice compares to other Harris County defense firms. Doug Murphy has also taught at more than 120 continuing legal education seminars for other defense lawyers nationally, a form of peer instruction distinct from marketing.
Track Record
The firm publishes named case verdicts on its own website, including a not-guilty verdict on a .17 breath-test DWI, a dismissed 8th DWI arrest, a not-guilty finding on a felony criminally negligent homicide charge, and multiple dismissed felony assault and drug possession charges. These are firm-published results and have not been independently re-verified against court dockets by this profile; past results do not guarantee similar outcomes in any future case, and every case turns on its own specific facts.
Client Voice
Doug Murphy holds a 5.0 average across 60 reviews on Avvo, with reviewers repeatedly citing DWI cases dismissed after evidence-suppression motions, responsiveness throughout the case, and Murphy’s own encouragement of substance-abuse treatment as part of a client’s recovery rather than purely a case strategy. The firm is not BBB-accredited, which BBB notes reflects the business’s choice not to seek accreditation rather than a negative finding. Awesome Attorneys did not identify a pattern of negative or unresolved reviews warranting disclosure.
Beyond the Courtroom
The firm runs an annual $1,000 scholarship awarded each college semester to a law student, and Doug Murphy has spoken at more than 120 continuing legal education seminars training other defense attorneys nationally — a form of field-wide contribution distinct from an individual case practice.
Recognition
Doug Murphy’s Board Certification in Criminal Law from the Texas Board of Legal Specialization and Board Certification in DWI Defense from the National College for DUI Defense are independently documented credentials, not self-styled titles — the firm’s own materials describe him as one of only two Texas attorneys holding both. He has been named a Best Lawyers “Lawyer of the Year” honoree and has held a Super Lawyers selection continuously from 2013 through 2025 (also 2009), a peer-review-based distinction distinct from a paid marketing list.
Texas Legal Backdrop
A Texas DWI arrest triggers two separate proceedings: the criminal case itself, and a civil Administrative License Revocation (ALR) case against the driver’s license, with only 15 days from the date of arrest to request the ALR hearing before a suspension takes effect automatically. A Texas DWI conviction is permanent and cannot be sealed or expunged under current law, and penalties escalate sharply when a child under 15 is in the vehicle (a state jail felony) or when the offense causes serious injury (intoxication assault) or death (intoxication manslaughter). None of this is legal advice; anyone facing a DWI charge should consult a licensed Texas attorney about the specific facts of their case.
Awesome Attorneys Assessment
Murphy & McKinney’s clearest, most checkable differentiator is Doug Murphy’s dual Board Certification — Criminal Law from the state and DWI Defense from the national college — a combination the firm’s own materials state only two Texas attorneys hold, paired with a felony-prosecutor background on the partner side that gives the firm insight into how Harris County actually prosecutes these cases. The honest trade-off: the firm’s published case verdicts are self-reported rather than independently re-verified by this profile, and a two-name firm has real capacity limits compared to a larger multi-attorney practice. For a Harris County client facing a DWI charge specifically, the dual-certification credential is a genuine, checkable basis for a shortlist.
Methodology and Sourcing
This profile was researched from Murphy & McKinney Law Firm’s official website (dougmurphylaw.com), Doug Murphy’s Avvo attorney profile and State Bar of Texas licensure record, his Super Lawyers profile, and BBB’s business listing for the firm.
Publisher Disclosure and Independence Notice
Awesome Attorneys is an independent legal directory and editorial publication. This profile was not paid for, commissioned, or reviewed by Murphy & McKinney Law Firm, P.C. prior to publication. Awesome Attorneys may in the future offer sponsored placement products to attorneys and firms, including this one, but sponsorship has no bearing on the editorial content, inclusion, or findings of this profile.