JPMorgan Chase expresses concerns about China's property crisis and the potential risks of allowing banks to offer unsecured loans to developers. This move could raise concerns about national service risk and credit risk. The implementation of this measure would be challenging as banks might circumvent the guidance due to credit risk concerns. China is considering letting banks give loans to certain construction companies without collateral to address the property crisis. JPMorgan recommends buying property shares and selling bank shares if unsecured loans become a reality.