How do I value my collection?

[hotwine]

Welcome to the board.
There are ads in the backs of both Wine Spectator and Wine Enthusiast magazines for companies that specialize in helping people sell their wine collections. Most will probably ask for some guarantee of provenance - certificaton that the wine has been stored properly since purchase, dates and places of purchase, etc. Provenance is the big wild card in anyone's purchase of someone else's collection. Good luck.