Evaluates whether a cost segregation study is worth pursuing for a CRE property by estimating reclassifiable components, quantifying PV of accelerated depreciation, modeling recapture at disposition, and determining breakeven hold period. Applies the One Big Beautiful Bill Act's permanent 100% bonus depreciation for qualified property placed in service after 2025-01-19 (and the pre-2025-01-19 TCJA phase-down for earlier placements), and accounts for passive activity limitations and state decoupling.