Texas Non-Subscriber Work Injury Lawyer. Attorney Sandoval has over 20 years of experience representing injured workers all over the United States. 12 years representing injured railroad workers in FELA cases. Based in Houston, Texas but, representing injures Texans all over the State! We handle Walmart Workers' Comp Claims, HEB Workers' Comp Claims, Amazon Workers' Comp Claims, Lowe's Workers' Comp Claims, Target Workers' Comp Claims and work injury claims against other major retail companies.