Who is responsible for insuring a shared party wall between attached townhome units?
It depends on how the governing documents assign responsibility, and that assignment should match the insurance program rather than being left to be argued after a loss. Many townhome declarations put the association in charge of the party wall and exterior structure while leaving unit interiors to the individual owner's policy, similar in concept to a condo bare-walls basis but built around attached ground-up construction. A fire or water loss that crosses the party wall between two units can trigger claims against the association's policy, both owners' individual policies, and a subrogation question between insurers, so the declaration language and the master policy need to agree on where the boundary sits before a loss, not during one.