Can a Mortage lender back out of a pre appoved VA home loan?

[Jackie Cuellar]

We are in the process of buying a house and 7 days before closing our lender says that the VA will not approve our income due to the fact that my husbands income is derived from a legalized cannabis delivery company. We were pre approved 2 months ago. If anyone has any insight on if this is legal or what can we do to keep this house? Any suggestions are welcome.