If you are trying to complete this week's challenge in Bitlife, you will need to get your house repossessed in the game. Getting your house repossessed is not rocket science, It can actually be done very quickly by first finding a house and buying it via the relator tab in assets.
You can find a realtor by clicking on the asset tab, and then if you want to buy a house, you will need to use the mortgage option. Once your house is bought via a mortgage, you will need to make sure not to make any payments by having no money in your bank account.
Related: How to gamble in Bitlife
Do this, and after a year or so, your house should be repossessed by the bank in the game. That said, you can make sure you don't have any money by not getting a job in the game - this means both part-time and full-time.
Overall, this is fine as you can't get a full-time job anyways for this challenge going on this week. However, you'll need to get a part-time to complete the gambling job eventually. So the best thing to do would be to wait on the part-time job until you get your house repossessed.
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