I need some knowledge from those of you who have it. I am a medium and my brother in-law has an entity that is bothering him. I have seen it is a tall black shadow figure that hangs around one of the corners of the house inside and out using the back door to gain access. I believe it to be an inter-dimensional being because I also see it use what I think is a portal behind the house, it will come and go as it pleases. I didn't believe it to be human but someone else my BIL knows who is also sensitive said he saw a witch. What he means by that I am not sure. My BIL also said he saw exactly what I do, a tall (taller than human) black shadow thing.
I feel like the other sensitive could be right and if he is I think it would be someone who had strong spiritual influence when alive, like a Shaman. I don't know who/what is capable of using a portal but this thing is. I should mention where he lives there is strong Aboriginal/Metis influence. He lives along a lake so settlement goes back quite far, and there has been historic battle very close by.
So my question is what do you think this could be? This entity is old, I think it is from the 1700's roughly. I also think this entity is attached to the location, not anything to do with anyone in the house or even the house itself. I feel it is definitely negative. My BIL told me he has been choked while sleeping, even if it is sleep paralysis I think it is caused by the shadow thing. He admitted he does not feel safe. I plan to do a basic smudging of him and his house and the area outside, but I already know it will not get rid of this thing. This is something I have not yet encountered and feel I need to be very careful dealing with it. I feel strongly it is either not human or something/someone connected spiritually or religiously to that area. What type of spiritual or religious person could present this way? Any help is greatly appreciated. Thanks!