Yes Sokasato, powers can be passed on from family to family.
My father moved into this house, in which three people died in 1970, Mother, Father, Son.
At the time, my father was single, and had three jobs, so he didn't live much at home, so one day when he was home, he went to do some house work and saw a family of three, say he was a good man to stay at their house, he never saw them again. That was until Weeks later, my dad is at work and get a call from a friend saying his house was broken in, my dad left work and came home to find everything in the center of the room, nothing was stollen, the only thing broken was the window the guy broke into, and the screen door was broken too, like the person left in a hurry. The father ghost was there and didn't say a thing and just walked away, my dad thanked them. Years later, my dad owned two houses, and would rent out the one with the ghost to people he worked with, it was four people that rented that house, and all had starnge things happen to them, but the fourth person stuck it out all they way to the end. The 1st person, was a lady, she stayed for a week, but moved out, saying she heard voices of hate everywhere, the 2nd lady, was very healthy, but once she moved in, she got sick, she moved out and got better, the 3rd was a man, who only stayed a day, he had stuff being tossed at him, and the 4th, was my mother, they tryed to mess with her, voices, moving things around, turning the water on and off, she told them to quit and leave her alone, she too saw the family of three, telling her they were sorry and a good girl, she stayed and lived at the house, telling my father about the events that had happen and about the three ghost that resided there. Then somewhere along the way they got marryed and had me and my sister, I see the ghost, as my sister lost her ability over time, but from time to time she will see them. My father is a Cheif Indian this coming from a long line of desenends, don't get me started with GrandPa Cheif RattleSnakes storys, and my mothers side.....Slavainan Gypsy about two Generations ago. So yes, powers can be passed on, on how the power is more intune is how the child is raised.