Torts — Insurance agents — Negligent procurement of insurance — Unjust enrichment — Condominium associations’ claims against insurance agent that failed to procure a contractually required “Payment and Performance Bond” on behalf of contractor who performed post-hurricane roof repairs — Damages — Jury instructions — Trial court did not err in instructing jury that proper measure of damages in negligent procurement of insurance claim is loss that would have been covered had the insurance been properly obtained