A home purchase contract will not be voided or terminable because of unemployment or financial issues unless there is such a contingency within the contract itself: that is, the law does not give you a right to get out of the contract in such a circumstance, if the contract does not contain such a right. Therefore, if you cannot go through with the contract, you will be in breach of it; that will enable the seller to keep all your earnest money and deposit, and if they incurred some loss or damage due to your breach which exceeds the amount of your deposit (for example: they put a deposit on another home once you entered into a contract to buy their home; that deposit is larger than the deposit you gave; now they cannot go through with their own sale and will lose their deposit), they may be able to sue you for the additional money as well.There is nothing legally you can do if you can't go through with the contract; you can always talk to the seller and see what you can voluntarily work out.