1. You bought a second-hand house. Is there a lease relationship in this housing relationship, that is, the landlord and grandmother rent the house? If you knew this when you bought it, it would be difficult for you to vacate the house.
If the landlord clearly told you that you can move in after buying the house when signing the house sales contract with you, but now it's no good and your goal can't be achieved, you can ask the landlord for a refund. The use period is one year, which is the scheduled period, because the landlord violated the principle of good faith.
2. Because there is a court ruling, your house has a lease relationship, and the estimated value of the auction is not great, so the arrears of the auction should be given priority to the bank loan.
The owner of the house is you. If you don't repay, you may face serious criminal punishment of less than 2 years.
4. If the situation meets the second half of Article 1, directly sue Shunchi intermediary and landlord, and request the court to cancel the contract by contract fraud.
Good luck!