While all of the above posts are interesting, it seems the best course of action is to immediately take the amplifier to a Mark Levinson authorized repair shop. If it were me, I would rush my amplifier to the closest Levinson authorized repair shop for an opinion and an estimated written cost to repair. One question to ask is what damage, if any, did the leaking caps do to the wiring, other parts, etc. Unfortunately, you might have to ship it to another location (I do not know).
After reading everyone comments above, my sense is you cannot sue the dealer that you first took the amplifier to.
I do not know the age of your amplifier but I would be careful about spending big dollars for its repair. The problem is if something 'major" goes wrong today, other things might break tomorrow. Depending on the repair cost, and the opinion of the repair technician, I would ask about replacing your current broken Levinson amp with another amplifier assuming the retailer can give you a reasonable trade in on your old one. If your amplifier is very old, I question making expensive repairs. Please let us know what happens.