"A lump sum settlement is a one-time payment made to a claimant under the Defense Base Act (DBA). This type of settlement is made out when the claimant agrees to waive their right to future medical benefits and monthly reimbursements. Lump sum settlements are generally used to resolve cases where the employer acknowledges liability, but disputes compensability of the extent of the claimant's injuries. It is important to speak with an attorney before agreeing to a lump sum payment