Anointing Your Home/Spiritual Warfare

Has anyone had experience with ridding a home of demonic oppression? My mother passed away leaving me her home. It's beautiful and well-built on 2 acres, but it's not in an area of much opportunity so I've been trying to sell it. The real problem is that she was a christian scientist (44+ years), and at one point described some sort of visitation that lasted several days. I won't go into details but she seemed to think it was a good thing but I absolutely know it had to have been demonic. Especially since she was so deceived through that false religion. I'm certain she opened many doors that need to be shut or I believe I'll never sell the place. She came to live with me about a year before she died so the house has been unoccupied since then. Every time we would make the trip (4.5 hours) back to retrieve anything, while in the house mom would get sick. She would feel dizzy, sick, have angina and could only sit, not able to do or pack anything. We would usually only stay a few hours and turn around and I'd drive us back to Dallas. I've never felt at peace there. I believe it definitely needs to be cleared of oppression, at the very least. However, I would have to do this alone as I don't have another strong Christian who can accompany me there. Any advice? I'm rather nervous about tackling this but I feel it really needs to be done. I haven't been back since mom passed in August and I dread going back there for this reason and because of the emotional toll. I'm afraid that this will make me spiritually vulnerable since I'm still grieving my mother's passing. Does that even sound logical? I came across this article by Ray Gano where he says "NOTE – It is a good idea that if you feel your home is strongly oppressed, do not do this alone. It is better to have other strong mature Christians with you, praying with you as you go through your home." How Do I Battle Demonic Oppression & Influence?