Först Consulting Group works for all sides of a construction dispute: homeowners, builders, contractors, architects, attorneys, and insurance companies. The firm is retained by plaintiff and defense counsel alike, and also directly by homeowners who suspect defective work or overbilling before litigation begins. This cross-party experience is a credibility asset — the analytical method and the standards applied are the same regardless of who retains the firm, which is what allows the resulting opinions to hold up under cross-examination. Först Consulting Group favors defensibility and credibility over maximizing figures for the retaining party.