(i) Administrative settlement. The purchase price for the property may exceed the amount offered as just compensation when reasonable efforts to negotiate an agreement at that amount have failed and an authorized Agency official approves such administrative settlement as being reasonable, prudent, and in the public interest. When Federal funds pay for or participate in acquisition costs, a written justification shall be prepared, which states what available information, including trial risks, supports such a settlement. (See appendix A, § 24.102(i).)