Someone here was asking about this so I did a little research.
In many cases it is easier to exercise and do a same day sale than to sell the contracts. Buyers appear to be low-balling some of the in-the-money contracts. It may also be possible to short shares and then exercise your contracts to cover the shorted shares.
I'm currently using eTrade, and have a substantial portfolio for margining, so I found that both of these options are possible.
By the way, the closer we get to an option expiration date the more downward pressure we will see and the more crap you will see posted here. You might want to consider making your moves this week while things are still healthy.