2/3 roommates broke the lease, how to handle?

[Eddie Lehwald]

2 of 3 roommates in our house-hack duplex left unexpectedly last month. Roommate A gave no notice (to us or the other roommates) and just bounced, Roommate B is moving back to Colorado because he got in a car accident and ended up with a concussion requiring ongoing care, which isn't covered by his insurance in Texas-a crappy situation.

Roommate A has done nothing to fill his vacancy, and no one can get in touch with him. B posted ads and found an acceptable replacement, but those ads had roommate C's contact info so we were under the impression that roommate C had done the legwork. Now we are left with a vacant room and we decided to release A and B from their obligations under the lease, but keep their security deposits. B is complaining "I found a replacement and cleaned! I'm leaving for medical reasons, and A just left one day and hasn't done anything! Not fair!"

My take on the whole thing is that, yep, it's not fair, but the alternative is that we keep both of you on the lease and you pay rent from afar. This way you're free and clear and I'll even give you a good recommendation for another place to live when the time comes.

BP hive mind, are we in the right here? I think that if you break a lease, you should pretty much be expecting to lose your deposit no matter the circumstances.

What say all of you?