Midfirst is going to be a big nothingburger. Debt is a civil matter, defaulting on debt holds zero chance of jail time. In civil maters like this all the bank can really do is come after him for money, which means they will have to domesticate the suit in his state so he wont have to travel for this. Assuming they win then they are stuck trying to squeeze blood from a stone. Since DSP is a sole proprietorship they can't garnish his wages. What is left is to either seize assets or put a lien on his house. Due to anti preditory laws it is basically impossible for your house, car, or business equipment to be seized to settle an unsecured debt, which about covers the only thing DSP actually owns in real assets. The only other thing they can do is put a lien on his house, which means that if he goes to sell it they have to be paid off before DSP gets any money out of the sale. So basically nothing that will practically effect Dave in his day to day.
Your hail Mary play here is the bank CAN seize that sweet liquid cash if he has it in his bank account. So if by some chance DSP was actually saving a ton of cash then absolutely the bank can take that via court order. The problem is that id give it a one in a million chance piggy actually banks his cash in a real bank account. We all know that cash gets immediately deposited into the first bank of sweaty boys.