capital_recoverable = Σ surplus_amount (per lead)
capital_at_risk_of_escheat = Σ surplus_amount
WHERE auction_date < NOW − 330 days
# Florida statute escheats at 365 days. We flag at 330 to give
# heir-search firms a 35-day operating window before forfeiture.
Today, $5.37M sits across 23 active Miami-Dade cases. Nationally, $2.1B is unclaimed in county clerk accounts (Surplus Funds List 2026).
zombie_probability = 0.0325 # ATTOM Q4 2025 (national)
vacancy_probability = 0.0132 # ATTOM Q4 2025 (national)
decay_demolition_rate_15yr = 0.15 # urban core, conservative
per_m2_demolition_CO2 = 40 kg # direct + transport, midpoint
property_m2 = square_footage × 0.0929
expected_CO2_tonnes = property_m2
× per_m2_demolition_CO2
× (zombie_probability
+ decay_demolition_rate_15yr × vacancy_probability)
/ 1000
A 1,500 sqft (139 m²) property carries ~0.19 tonnes CO₂ at risk. Across 22K Florida foreclosure leads, that aggregates to ~4,200 tonnes — probability-weighted, never claimed as "saved."
displacement_flag = homestead == true
OR is_estate == true
OR complaint_owner_deceased == true
OR surplus_amount > judgment_amount × 0.3
count_displacement_at_risk = COUNT(leads WHERE displacement_flag)
Live from the Miami-Dade pipeline: every flagged case is a primary residence whose former occupants (or heirs) stand to lose recoverable equity unless reached.
asbestos_risk_count = COUNT(leads WHERE year_built < 1980)
expected_abatement_cost = asbestos_risk_count
× 0.95 # Detroit ARD prevalence
× $2,743 # avg abatement cost (Detroit study)
In the Detroit 605-sample study (PMC7060826), 95% of abandoned residential dwellings contained asbestos. Avg demolition cost $13,645, of which 20.1% ($2,743) was abatement.
