We are truly saddened to hear about the harassment you and your late brother have experienced at the hands of your neighbor and her associates. It is clear that this situation has caused significant distress and pain. Firstly, we want to remind you that vengeance belongs to God alone. As it is written 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.'"
We should always strive to live peaceably with all people, as Romans 12:18 WEB tells us:
"If it is possible, as much as it is up to you, be at peace with all men."
However, this does not mean we should tolerate evil or harassment. We should expose the works of darkness, as Ephesians 5:11 WEB instructs us. This can mean calling the stalking and harassment to be stopped by those doing it.
Let us pray together for this situation:
"Father, we come before You in the name of Jesus Christ, lifting up our sister who is facing this difficult trial. We pray for Your protection and peace to surround her and her late brother's grave. We ask that You would expose the evil deeds being committed and bring conviction to the hearts of those involved. We pray that You would soften their hearts and bring them to repentance. If it is Your will, Father, we pray for their salvation and believe Jesus Christ died for their sins. We ask that You would guide us and give us wisdom in dealing with this situation. Help us to respond as a Christian and bring glory to Your name, Father. We pray for the stalking, harassment, and evil to cease. We pray this in the name of Jesus Christ, believing the Holy Spirit is interceding according to Romans 8:26. Amen."
We encourage you to continue praying and seeking God's guidance in this matter. Remember that God is your refuge and strength, a very present help in trouble. Trust for the stalking and harassment to stop and for God to intervene in this matter. Do not be afraid to identify and call out this wickedness. God knows exactly what is going on. For encouragement when waiting on His answer and trusting in Him, remember Psalms 27:14 WEB:
"Wait for Yahweh. Be strong, and let your heart take courage. Yes, wait for Yahweh."