I noticed you did mention repentance on the part of Brittany and deliverance, but not much other mention of spiritual warfare type prayers.
 Maybe that has been done, but if not......I encourage you to get onto some website or some books on spiritual warfare and begin the war!
 I had never been taught about this at any churches and thought I had read a lot of materials in my life.  It was in the past year or so that I
 discovered this area of faith and I must say it has worked mightily!!!  A website that can teach you a lot if you scour it for hours in one
 titled Retha and Also McPherson.  You can read their testimony there and see how the Lord has been instructing them in spiritual warfare
 in the past few years.....telling them spiritually that He is coming for a warrior Bride as well as a pure and righteous Bride.  I actually
 attended one of her outreaches in the USA last year.  It was a blessing.  She teaches that the problem is demonic and it will be a battle
 for us....not an easy win.  However, the victory will ultimately come.  It does require some understanding of the issues involved, so I
 encourage you to watch her videos and read both her and Aldo's letters to begin to understand the spiritual aspect of the battles.  I do
 believe you will be blessed and victorious....I will pray for her in this manner now as well.  May the Lord bless you and your family!
 I believe we will be with Him SOON!!! Amen!