Monsters from lairs are automatically spawned on the lairs under the players control.  They don't need to be trained in the cities anymore.

I was able to get a single  forest drake out of a lair, even though it showed as not buildable by my faction (kingdom).  I clicked build and it built anyway. 

 The Knights of Asok are a great addition.  What could be fun would be certain lairs won't let you recruit if you have already recruited an "arch-enemy" lair.

Keep it up!

I was a beastmaster sov... does that affect lairs?

lol ^_^
Well if they have an upkeep, there should be some button to make it stop spawning more units.
Money doesn't flow down the river into my coffers... (oh wait?)..

Sincerely
~ Kongdej