<human>: My condo complex has had some significant repairs done recently, spending hundreds of thousands of dollars.  Unfortunately there is a construction defect that is causing leaking in something that should NEVER leak when just replaced.  The contractor "fixed" the leak with caulk instead of figuring out what the underlying problem is.  The guy that actually did the work said that the leak should never happen because of the way the construction was done.  

As a owner who's unit has had work completed I've addressed my subsequent communications regarding this problem has been directly with the condo board.  Unfortunately the board and condo management have forwarded my communications directly to the contractor.  

Those communications simply raised concerns with the technical details of the project and I formally requested they bring in a third party expert to examine the work done and give the design a blessing or suggest changes.  Reasonable to do before we spend hundreds of thousands more for what I consider to be a defective repair.  At no time did I suggest the board change contractors, I was only concerned with what I believe is a design and/or construction flaw.

As written above, the owner of the construction company is attempting to intimidate me both physically and by threatening to sue me.   After this behaviour I'm concerned about my property - I wouldn't be a bit surprised if this jerk slashed my tires.

I've reported the encounter the the condo board and manager and requested immediate termination of our business with this company and revocation of his property access.

I would like any suggestions on how to handle this both with the contractor and with the condo board.  I don't believe the contractor a leg to stand on legally.  What can I do to make sure the board takes this seriously and addresses the issue with the threat?

Give me a shortened version of the text
<bot>: Questioned the quality of a condo contractor's work.  Contractor attempted to physically intimidate me and is threatening to sue me.  Location U.S.