I'll try to make this short and to the point, but there are a lot of moving parts.

We are supposed to close today on a property.
The property has a home, a 2500 sqft shop, and a very large pole barn (that has a lot of junk and debris inside).
At one point the shop was used to commercially grow marijuana. It had a mini split AC unit, fully working fans, grow lights, hvac system, heating, water tanks etc.

In our contract, our ONE condition was that the shop be included as is, and all equipment stay, everything inside stay. We would allow the pole barn to be left as is (they wouldn't need to clean it out) so long as everything in the shop stayed.

Well today we went to do a final walkthrough and the shop had been ransacked. Mini split had been removed, grow lights gone, vents gone, everything was gutted and trashed. There's shit everywhere and they basically took everything valuable and left everything else in shambles thrown around.

We found out that the sellers agent told the seller that she could take whatever she wanted? (clearly didn't follow the contract)

We're kind of at a loss right now. The value of the shop is now significantly lower, we would have to do a considerable amount of work to restore it to working condition.
Should we hire a lawyer?