T.D. Knowles & Associates (TDKA) is a premier law firm practicing American immigration law and offering limited commercial services. TDKA focuses on business and investment immigration, but also provides services in the areas of family sponsorship visas, employer-sponsorship visas, work and student visas, multinational transfer visas and other non-immigrant visas. Our lawyers have more than 20 years of combined experience as immigration attorneys or consultants. TDKA is particularly active and experienced in assisting its commercial clients to access Asian capital via investment immigration programs.