Machine for controlling a system changing electrical signals to separately value components temporally decomposed from residential property, the computer apparatus including: a computer system, arranged for receiving information into a memory, the data representing the residential property, the computer system further comprising: logic means controlling the computer system to change the data to produce modified signals representing a separate valuation of each of a plurality of components temporally decomposed from the residential property, the components including a residential estate for years interest and a residential remainder interest; and an output device connected to convert the modified signals into documentation including the respective valuation of each of the components.