Some Hong Kong landlords have spent millions renovating their subdivided flats to be among the first to meet the new standards coming into effect on March 1, but many others remain taken aback by the high costs and are unsure whether to proceed.Building experts have also warned of the challenges facing landlords seeking certification under the new law, including meeting waterproofing and fire safety requirements, which will require professional advice and supervision.Matthew Lau Chi-kwong, a...