Who is the only one who could fulfill the requirements for the mortgage Satan holds?

Jesus Christ is the only one in all eternity who could fulfill the requirements for the mortgage Satan holds. He alone was the next of kin, the Son of God, and possessed the power and all the attributes to carry it out, and He was willing to do it, becoming the great payer of that mortgage.

Les explains that Jesus is the only one in all eternity who could fulfill those requirements because He was the next of kin and the Son of God. He had the power and all the attributes to carry it out, and He was willing. Therefore He becomes the great payer of the mortgage Satan holds. Les also connects this to the tribulation events, which God will use to pay Satan off in full, and to the earth's coming delivery from Satan and the curse.

Why is Jesus the only one who can pay the mortgage that Satan holds?

Jesus alone could pay the mortgage Satan holds because He is the next of kin, the Son of God, and possesses the power and all the attributes required. He was willing to do it, so He became the great payer of that mortgage, satisfying its requirements in full.