I have been contacted by a few people claiming to be lawyers in the case of Bitcoinica. They tell me to give them information and proof of claim but these are just random people on the Internet asking for information.
Has anyone else had any contact? I lost some BTC on that exchange way back in the day.
Was it PKF Corporate Recovery & Insolvency in New Zealand who contacted you? If so, it may be legit.
I stumbled across this case recently when looking into outstanding Mt. Gox claims. The stolen Bitcoinica funds were found in an Mt. Gox wallet before Gox went down. PKF has supposedly been trying to recover those funds on behalf of customers through an Mt. Gox claim.
Their website lists this under "recent notable appointments":
Bitcoinica LP: The first Limited Partnership to be put into liquidation by the High Court.
http://www.pkfcr.co.nz/services/I would contact them directly. Maybe they are contacting claimants in relation to the recent Fortress offer?