Hi my brother has just moved into a house with his girlfriend & her 3 children she split from her husband who was violent, he keeps seeing a little girl around the age of 5 in the house but just lately she goes out in the car with them and to my mums house she seems to be guarding the children, but last night things changed my bro saw her several times last night and when he went upstairs her called to his g/f she said I'm just coming then he heard a noise like a chair moving he ran down to find his g/f on the floor face down in a state of death, he tried for ages to bring her round then he slapped her face she screamed and ran upstairs locking herself in, her ex used to do this so she thought it was him, so my bro was upset and tried to flee the house but could not find his keys to get out so he stayed,today he asked he what happened she said that something pushed her to the ground and held her hands behind her back she saw my bro but she was watching from the ceiling she saw and heard all but couldnot respond something was holding her back he also asked asbout the keys she said she locked the door before he went to bed with her keys and left them in the lock, but when they looked his keys were in there and hers were on the computer, can anyone help them as they are really scared

If your brother and/or his g/f hasn't experienced these type of happenings before moving into the home then the home would be the logical source for the entity(s), therefore, they will experience several unexplained happenings/situations. Experiences as these usually are far more depth to deal with than just by the homeowners alone. If this is the case then they should either think about relocating or consult someone who will come in and conduct a consecration of the home. My prayers are with your family. May the Lord Bless and keep you.

I find that it is best to remember that these entities were living people, just like you and I. If a living person were hanging out at your house all the time and their prescence was annoying, at some point, you would ask them to leave.
Smudge the house with sage http://www.pharrah13.com/smudging.html"
Then just speak to them out loud. Acknowledge that at some point, this was their home, but it is your now, and they should go to God.