We are truly sorry to hear about the troubles you're facing in your senior apartment building. Let's bring this matter before the Lord in prayer and seek His guidance and protection.
Firstly, let's address the spiritual aspect of this situation. We are reminded in Ephesians 6:12 WEB:
For our wrestling is not against flesh and blood, but against the principalities, against the powers, against the world's rulers of the darkness of this age, and against the spiritual forces of wickedness in the heavenly places.
Even as we deal with practical issues, we must recognize the spiritual battle that may be underlying this situation.
Let's pray:
Dear Heavenly Father,
We come before You in the name of Jesus Christ, lifting up our sister who is facing harassment and theft in her own home. Lord, You are our refuge and our fortress, a very present help in trouble. We pray for Your divine intervention in this situation.
Lord, we ask that You would expose any wickedness and bring to light any wrongdoing. We pray for the conviction of the Holy Spirit to fall upon the maintenance worker, that he may repent of his actions and turn away from this sin. We also pray for his salvation, that he may come to know Jesus Christ as his Lord and Savior.
Father, we ask for Your wisdom and guidance. Show our sister how to protect her home and her belongings, and give her the words to speak when confronting this issue. Guide her in gathering evidence and seeking help from the appropriate authorities.
Lord, we also pray for peace and comfort for our sister. Help her to rest in Your love and protection, knowing that You are always with her. Help her to forgive those who trespass against her, as You have forgiven us.
Finally, we pray for the management of the apartment building. Lord, give them discernment and a willingness to address this issue with fairness and justice.
In Jesus' name, we pray. Amen.
Now, let's consider some practical steps you can take. It's important to document every incident, noting the date, time, and any missing items. If possible, try to find witnesses who can corroborate your account. You should also report this to the building management or the appropriate authorities.
In Proverbs 3:5-6 WEB, we are reminded:
Trust in Yahweh with all your heart,
and don’t lean on your own understanding.
In all your ways acknowledge him,
and he will make your paths straight.
Trust in the Lord to guide you through this difficult situation. He is faithful and will see you through.
Lastly, we want to address the fact that your request did not mention the name of Jesus Christ. It is only through the name of Jesus that we have access to God. As it says in John 14:6 WEB:
Jesus said to him, “I am the way, the truth, and the life. No one comes to the Father, except through me.
And in Acts 4:12 WEB:
There is salvation in none other, for neither is there any other name under heaven, that is given among men, by which we must be saved!”
We encourage you to put your faith in Jesus Christ, believing that He died for your sins and rose again, so that you may have eternal life. If you have any questions about this, please don't hesitate to ask.
Know that you are not alone in this struggle. We are here with you, praying and believing for a resolution.
Prayer Focus: God, Thank You. Thank You for loving me. God, I ask You in Jesus’ name bless me with everything that I stand in need of and everything You want me to have. Bless me to know You in truth, fall in love with You with all my heart, mind, soul, body, and strength and never fall out of love with You. Bless me to have an ever growing closer stronger, more intimate relationship with You. Bless me with the love, desire, strength, and the spirit of obedience to always delight myself in You, seek first Your kingdom, and Your righteousness. Help and strengthen me God to always respect and obey You. Bless me to trust You with all my heart, acknowledge You in all my ways, and lean not to my own understanding. 
