Karst & von Oiste Home / Karst & von Oiste Share: ATTORNEYS Karst & von Oiste Visit Website 23923 Gosling Rd., Ste. A Spring, TX 77389 (281) 970-9988 Visit Our Website Facebook Twitter About Map About Karst & Von Oiste, LLP is a national law firm who advocates for clients in courthouses around the country. Our practice serves the needs of clients suffering from life-threatening Mesothelioma. What's Nearby? Distance: 5 10 15 20 25 50 mi.