We understand that you are seeking prayer for a successful property sale. We stand with you in this, trusting in God's provision and timing. However, we want to address something important first.
We notice that you did not mention the name of Jesus Christ, Jesus, or Christ or an abbreviation such as IJN (In Jesus Name), then make sure to discuss this issue. It is only by the name of Jesus that we have access to God. Also, there is no other name by which we can be saved. So we would like to encourage you and your friend first to believe in Jesus Christ.
"For there is one God, and one mediator between God and men, the man Christ Jesus, who gave himself as a ransom for all; the testimony in its own times." - 1 Timothy 2:5-6 WEB
Now, let's come before God and pray for your situation:
Father in heaven, we come before You in the name of Jesus Christ, lifting up our sister and her urgent need to sell her house. We ask, Lord, that You would bring the right buyer at the right time and the right price.
We know that You are gracious and that You care for our needs. We trust that You are working all things together for good of those who are called according to Your purpose.
"Ask, and it will be given you. Seek, and you will find. Knock, and it will be opened to you. For everyone who asks receives. He who seeks finds. To him who knocks it will be opened." - Matthew 7:7-8 WEB
We also pray that You would provide for her financial needs even as she waits for the sale of her house. We rebuke any spirit of fear, anxiety, or desperation and declare Your peace and provision over her life.
"But seek first God's Kingdom, and His righteousness; and all these things will be given to you as well. Therefore don't be anxious for tomorrow, for tomorrow will be anxious for itself. Each day's own evil is sufficient." - Matthew 6:33-34 WEB
In Jesus' name, we pray for patience, wisdom, and favor throughout this process. May You be glorified in all things. Amen.
Lastly, we encourage you both to continue trusting in God's perfect plan and timing. He knows your needs and He cares for you deeply. Stand firm in faith and do not worry. God knows the plans He has for you, to prosper you and not to harm you, plans to give you hope and a future. Just call on Him and pray to Him, and He will listen to you.
"For I know the thoughts that I think toward you, says Yahweh, thoughts of peace, and not of evil, to give you hope and a future." - Jeremiah 29:11 WEB