About Ayson Law Firm - HOUSTON DWI LAWYER Experienced, Tenacious Texas Criminal Defense & Personal Injury Law Firm At Ayson Law Firm, our seasoned Houston DWI lawyer is prepared to defend you against all kinds of criminal charges, from the minor to the most serious. If you or someone you know has been arrested or charged with DWI, manslaughter, drug crimes, or any other criminal offense in Houston, Ayson Law Firm is ready to help. We also have extensive experience and success in recovering compensation for car accident victims and other clients injured as a result of negligence.