Hong Kong lawmakers have warned of implementation challenges in a government proposal to tighten proxy votes and owner attendance at renovation meetings as part of a broader move to strengthen oversight of building maintenance after the Tai Po fire.Their warnings on Thursday coincided with the announcement of a second round of raids by the Competition Commission pertaining to a bid-rigging case involving 28 estates and contracts valued at around HK$500 million (US$63.7 million).The government...