I'm not sure. I can really only speak to the US and Canada. If so, the first step would be to find a competent attorney in Singapore to advise. The US embassy

I'm not sure. I can really only speak to the US and Canada. If so, the first step would be to find a competent attorney in Singapore to advise. The US embassy, for example, maintains a list of English-speaking attorneys in Singapore who may have relevant experience: https://sg.usembassy.gov/list-of-attorneys/ https://sg.usembassy.gov/list-of-attorneys/