Legal representation of the Client at the stage of building a case for settling accounts under a completed contract for specific work (development of the design documentation) with the contracting authority. Selecting arguments to make the case and defining the strategy of action to seek payment of the fee for the completed contract despite a case being made for no grounds to receive full payment due to no formal acceptance of one element of the completed work. Filing the lawsuit with the court seeking full fee payment. Challenging the provisions of the contract prepared as a public contract to the extent that they excluded the contractor’s right to receive full fee payment/make the fee payment contingent upon meeting strictly formal prerequisites, regardless of the method, accuracy and quality of performance.