Hey OP,
Don't know what job your wife had and I know places are not hiring but perhaps she could pick up a job, any job, retail gas station, something, any job just long enough to get your loan closed?
Its very hard to do but look into loan modification. My bank did a loan deferment as my wife works in the Restaurant business and it went to nothing. If her business does not pick up we may sell but my bank helped us for now,
Don't give up OP, Put your thinking cap on and think outside the box.