HSSK is now Weaver! Learn more. HSSK, LLC is a professional services firm dedicated to providing in-depth, unbiased expertise in the areas of Valuation, Dispute Advisory and Forensics, and Financial Advisory. The firm’s professionals have served the corporate, legal and professional communities for more than 40 years. With an average of 20-plus years of professional experience — and locations in Houston, Dallas, Austin and New Orleans — HSSK’s professionals provide trusted insight when it matters most. From quantifying and articulating value for financial reporting, to providing expert witness testimony on the stand, to delving deep into financial forensic work and beyond, no issue is too large or small. Real experts. Real answers. You can count on HSSK. HSSK is not a CPA firm.