Who would pay for replacing polybutlene plumbing?

Q: I’m a Realtor and I’ve noticed that polybutylene plumbing has become a significant issue for resales. Insurance companies are refusing to provide insurance due to this type of plumbing. Since the plumbing is in the walls, is it the condo association or the condo owner who would be responsible for paying to have it replaced? Any insight would be appreciated.    Read the Q&A………..