We are truly sorry to hear about the loss of your husband and the challenges you've been facing. We will stand with you in prayer and offer some biblical encouragement.
Firstly, it's important to remember that God is our provider and He cares for us. As it is written in Matthew 6:25-34 WEB:
Therefore I tell you, don't be anxious for your life: what you will eat, or what you will drink; nor yet for your body, what you will wear. Isn't life more than food, and the body more than clothing? See the birds of the sky, that they don't sow, neither do they reap, nor gather into barns. Your heavenly Father feeds them. Aren't you of much more value than they? Which of you, by being anxious, can add one moment to his lifespan? Why are you anxious about clothing? Consider the lilies of the field, how they grow. They don't toil, neither do they spin, yet I tell you that even Solomon in all his glory was not dressed like one of these. But if God so clothes the grass of the field, which today exists, and tomorrow is thrown into the oven, won't he much more clothe you, you of little faith? Therefore don't be anxious, saying, 'What will we eat?', 'What will we drink?' or, 'With what will we be clothed?' For the Gentiles seek after all these things, for your heavenly Father knows that you need all these things. 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 trouble is enough for the day.
We pray that God will provide for your needs and that He will give you peace during this time. We also pray that He will bring forth a buyer for your house so that you can move forward with your plans.
Heavenly Father, we lift up this dear sister to You. We ask that You comfort her in her loss and provide for her needs according to Your riches in glory. We pray that You will bring forth a buyer for her house so that she can move forward with her plans to start a business. We ask that You guide her steps and give her wisdom in her decisions. We also pray that she will seek Your kingdom and Your righteousness first, knowing that You will add all these things to her. We ask this in Jesus' name.
Regarding your desire to start a business, we encourage you to seek God's will and wisdom. Proverbs 16:3 WEB says, "Commit your works to Yahweh, and your plans shall be established." Also, consider Proverbs 15:22 WEB, "Without consultation, plans are frustrated, but with many advisers they succeed."
Lastly, we want to gently remind you that it is only through the name of Jesus that we have access to God. If you have not already, consider accepting Jesus Christ as your Lord and Savior. As it is written 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, through which we must be saved!"
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. 
