2. Influence is proper or improper. Proper influence is that which one person gains over another by acts of kindness and, attention, and by correct conduct. 3 Serg. & Rawle, 269. Improper influence is that dominion acquired by any person over a mind of sanity for general purposes, and of sufficient soundness and discretion to regulate his affairs in general, which prevents the exercise of his di scretion, and destroys his free will. 1 Cox's Cas. 355. When the former is used to induce a testator to make a will, it will not vitiate it; but when the latter is the moving cause, the will cannot stand. 1 Hagg. R. 581; 2 Hagg. 142; 5 Serg. & Rawle, 207; 13 Serg. & Rawle, 323; 4 Greenl. R. 220; 1 Paige, R. 171; 1 Dow. & Cl. 440; 1 Speers, 93.
3. A contract to use a party's influeuce to induce a person in authority to exercise his power in a particular way, is void, as being against public policy. 5 Watts & Serg. 315; 5 Penn. St. Rep. 452; 7 Watts, 152.