As a little clarification on legalese for the non-lawyer types, replevin is a state court procedure to get possession of some asset that you are entitled to possess. For example, if someone steals your car from you, you are entitle to replevin the car. Or if you pledge the car as collateral for a loan and don't pay the loan, the creditor is entitle to replevin the car. Or, if your neighbor borrows your car and doesn't return it when they are supposed to return it, you are entitled to replevin your car.
Or as another example, say someone has possession of a stock certificate that belongs to you. If they do not have the right of possession, you could sue to replevin the stock certificate.
Replevin technically doesn't apply in the broker liquidation case because federal law and procedures will trump state law and state procedures.
No more lawyer stuff, no more political stuff, so no more CYA