Philadelphia landlord buys home in 2009, declines in 2015 to renew lease of longtime tenants, who receive federal enhanced voucher rent assistance. (The family’s now-deceased matriarch moved in in 1982.) Third Circuit (2017): Not a problem. Federal housing law does not bind landlords to perpetual leases. Third Circuit (en banc, over a dissent): Reversed. No evicting enhanced voucher tenants without good cause.