I don't see it as an issue. Smudge your house using white sage - say some prayers. The entitiy cannot harm you - as another poster said - fill your home with white light - use clear quartz crystals.

There are entities all around us. We built our home in an old cow paddock. Nobody has ever lived on this land ( perhaps indigenous Australians but not in a house so to speak) and we have a woman that visits - she visits my second youngest daughter. One day driving to take the other kids to school she asked: "who is the lady who comes into my cot and plays with me - she smells nice and has beautiful long hair"... I believe she is my beautiful girl friend who passed thru this world in 2004 the year my 2nd youngest was born... She died of breast cancer... It's nothing to be afraid of. Maybe there is something this entity can teach you - or you her/him... Let go of the fear - cleanse your home - and all will be fine...