Massingill, Attorneys & Counselors at Law Share: Attorneys & Legal Services Massingill, Attorneys & Counselors at Law Visit Website 13809 Research Blvd. Ste. 425 Austin, TX 78750 (512) 410-0343 LinkedIn Facebook Hours: 9am to 5pm About Map About Texas Business & Estate Planning Attorneys. Our superpower is making the complex simple. Business Formation, Contracts, Estate Planning, and more. Directions We are located in the Chase Bank ''Tower of the Hills'' at 45 and 183. Suite 640 is on the 6th floor.