50 will be fine and he doesn't have to hide any assets. Chapter 11s are nothing like Chapter 7 or Chapter 13. In Chapter 11, your largest creditors control your plan, but unsecured creditors like Ol'girl are not considered a voting class. That means she just basically sits there. When you file a Chapter 11, you have within 365 days typically to file a Chapter 11 plan of reorganization. In that plan you state who gets paid what and for how long. Each group gets paid starting from the top to the bottom. Shit like mortgages, taxes, child support go at the top and shit like credit cards, student loans, unsecured judgements, and medical debts fall at the bottom. Since he filed a personal bankruptcy, what ever he doesn't pay her will be discharged at the end of his plan. She might only get 100K out of this and most of that is going to go all of her attorneys. She might pocket 10K if she is lucky and will probably be old as fuck by the time she gets that. Then at that point... 50 might pull a Sprewell and convert his Chapter 11 to a Chapter 7 and say fuck it.
The Chapter 11 plan can state that 50 will agree to pay the creditors at the bottom 0 cents on the dollar if he wanted to. I don't think that will happen, because he does have to pay them at least what they would receive if he would have filed a Chapter 7..... but his plan could say that he would pay his creditors 20 cents on the dollar each month for the next 60 years if he wanted to. That's the advantage of a Chapter 11. You really don't have a limit on the length of your plan. This is why a lot of Corporations choose Chapter 11 bankruptcy because it would allow them to catch up on their debts for a longer period of time and a smaller amount.
Classes that are considered a voting group will then vote on the plan and confirm it (lock it in), while non-voting classes (the lawsuit) just sit there and take it. Granted non-voting classes can file a motion to ask the judge to either A) Say that the Debt is non-dischargeable (can't get discharged) This can only be granted for specific situations. This lawsuit doesn't fall under it. B) Move that the case get converted to a Chapter 7. (Again on in limited situations. This would happen if 50 failed to do something or disclosure something.
That's basically all the chick can do. She would have to hire Bankruptcy attorneys and that's going to be costly. Most lawyers don't have a clue how to practice in this world. The saddest is part is that her civil lawyers are probably not going to see a dime of their attorney's fees in this case.
50's BK filing is one of the main reasons why I tell people that just because you might win an action against somebody..... doesn't mean you actually win. You have to really know when to pick your battles. What's the point of suing some mom and pop store that caused your injury if they don't have premises liability insurance. You would never see a dime of that money. Just like this woman.

Oh and BK aren't like how it used to be. There are a lot of lenders, credit card companies, and dealerships that will still work with people immediately after their discharge. I've helped clients get cars and houses in active Bankruptcy cases. The game has really changed since the housing crisis and Lawsuits against the mortgage companies a couple years ago. Interest rates are the only thing that I see that will still be affected by a Bankruptcy.