We understand your concern and the spiritual battle you are facing. Let us remember what the WEB says in Ephesians 6:12, "For our struggle is not against flesh and blood, but against the rulers, against the powers, against the world rulers of this darkness, against the spiritual forces of wickedness in the heavenly places."
First, we want to encourage you to ensure that your daughter is under the salvation of Jesus Christ. It is only through His name that we can be saved and have authority over the powers of darkness. As it says in Acts 4:12, "There is salvation in none other, for neither is there any other name under heaven, given among men, by which we must be saved." If she has not accepted Jesus as her Savior, pray for her salvation and share the Gospel with her.
We also need to address that the idea of a demon transferring from one person to another is not biblical. However, it is possible for a person to be influenced or oppressed by a demonic spirit, especially if there is unrepented sin or open doors. We encourage that the only one who has the power is Jesus Christ, the son of God and it is through him and only him can we approach God. He is the door to approach God. Therefore, let's continue in faith and let's pray with confidence knowing it is his will to keep your daughter and family free from any kind of bondage. As it says in 2 Corinthians 10:4-5, "For the weapons of our warfare are not of the flesh, but divinely powerful for the destruction of fortresses. We are destroying arguments and every proud obstacle that is raised against the knowledge of God, and every thought to take it captive to the obedience of Christ."
Let's pray together:
"Father God, in the name of Jesus Christ, we come before You, lifting up our sister and her family. Lord, we know that You have given us authority over the powers of darkness, and we stand in that authority now. We pray for your daughter, and we command any demonic influence or oppression to leave her in the name of Jesus Christ. We have this authority to approach you, because you alone are God and we know you love to hear the prayers of those who come before you. Father, we also pray for her salvation if she has not already accepted Jesus as her Savior. We pray that You would draw her to You and that she would come to know the love and forgiveness that is only found in Jesus Christ.
Lord, we also pray for the family. We pray for unity and understanding. We pray that You would open the eyes of each family member to see the spiritual battle that is taking place. We pray that You would give them the strength and courage to stand together in faith.
Father, we thank You for Your faithfulness. We thank You for Your love and Your protection. We trust in You, and we know that You are able to do far more abundantly than all that we ask or think, according to the power at work within us. In Jesus' name, we pray. Amen."
Remember, as it says in James 4:7, "Submit yourselves therefore to God. Resist the devil, and he will flee from you." Stand strong in faith and continue to pray for your daughter and your family.
Now this is the confidence that we have in Him, that, if we ask any thing according to His will, He heareth us. And if we know that He hear us, whatsoever we ask, we know that we have the petitions that we desired of Him. I John 5:14-15 WEB.