When I was living in a condo, and I was on the board, we were informed that board members individually or as a group cannot be sued, so long as what ever we decide as a board is in the best interest of the condo, so suing the condo board for a stolen bike will probably not get to far, if anywhere at all. I am going to guess that most boards are setup this way.
I look at it this way, and I feel sorry for the OP's loss, but chit gets stolen all the time, be it from a store, a home, a garage, an underground parking lot, and so on.....if you have it insured who really cares, it's a bit of property that is gone, make a claim and get another replacement for that what has been stolen, after all is that not why you have insurance.....?
You want to sue, move and line in the US, here in Canada it don't happen so much and when it does it's usually a joke....
case in point - someone took someone to small claims court to sue for 10 thousand dollars, judge ruled yup you gotta pay it back, can you do it all at once, nope, how much can you pay, I can pay 100 dollars per month until I have paid it off, judge accepted this, so 10 years to get your 10 grand back, buddy dropped the lawsuit, before the judge made it so, and was paid outside of the courtroom 2 grand.......yah go ahead and sue.....
not saying all end up like this, but suing for a stolen bike......not much will happen.....I'd almost say, nothing will happen......