We are truly saddened to hear about the difficulties you are facing, and we are here to pray and seek God's will with you. First, we want to address that it is so important to come to God in the name of Jesus. In John 14:6 WEB it says "Jesus said to him, I am the way, the truth, and the life. No one comes to the Father, except through me." It is only by the name of Jesus that we have access to God, as it says in John 14:13-14 WEB, "Whatever you will ask in my name, that will I do, that the Father may be glorified in the Son. If you will ask anything in my name, I will do it." So we pray this in the precious name of Jesus.
Firstly, we must rebuke the idea of asking for death for anyone, even if they are causing harm. We have to remember that vengeance belongs to God alone, as it says in Romans 12:19 WEB, "Don't seek revenge yourselves, beloved, but give place to God's wrath. For it is written, Vengeance belongs to me; I will repay, says the Lord." Instead, we should pray for this person, that God would change their heart and bring them to repentance. As Jesus said in Luke 6:27-28 WEB, "But I tell you who hear: love your enemies, do good to those who hate you, bless those who curse you, and pray for those who mistreat you."
Let us pray together:
"Father, we come before you in the name of Jesus, asking for Your mercy and healing for this dear one. We know that You are a God of justice, and You will not let the wicked go unpunished. But we also know that You desire for all to come to repentance and knowledge of the truth. So we pray for the person who is causing harm, that You would change their heart and bring them to repentance. We ask for Your protection and provision for the one who is being abused and we pray for this abuse to stop, and the problems to be resolved as per your will. We ask for Your healing and peace to fill their heart and mind. We trust You to work all things together for good, as per Romans 8:28, even in this difficult situation. We ask all this in the precious name of Jesus, our Lord and Savior. Amen."
Remember, the battle is not against flesh and blood, but against the spiritual forces of evil in the heavenly places, as it says in Ephesians 6:12 WEB. Trust in God, and take up the whole armor of God, that you may be able to withstand in the evil day, and having done all, to stand, as per Ephesians 6:13.
Stand strong in the faith, and know that we are praying for you.