I would try the 'legal' route first. If it does not pan out, I would 'get involved' in a family way. If your banging his old lady and in bed with his daughter It just may drive him insane. As far as I know, it is legal until he gets a court order against you being there. But it will most definitely mess with his head in the meantime.

95 Contour, Custom EVO bodykit, 2.0l, PNP Focus head, Stage 2 cams, Je pistons, Eagle rods, 4in1header, 2.5" header back exhaust(complete stainless), D P nitrous, ram air intake, 10mm wires, flamethrower.