Offer in Hong Kong

Hello I joined my current company ~12 months ago, largely for the potential opportunity of a role opening in Hong Kong. As it turns out, the role came through (previous offers of a transfer internally fell through at a previous company), and the offer arrived in my inbox this week. I feel like there are potentially many areas that I’m not appreciating about emigrating from the UK to Hong Kong and I had a few questions: Legal – who would you go to, to have a contract reviewed? Peers/google hits have mentioned Expat Contracts, but I’m unsure as to what these are, or how they may be different. Offer – Seems reasonable, but due to my industry is hard to compare. I work in computer / network security (penetration testing) and would be team lead for the APAC region, mentoring/line managing a small group initially. Broadly: - Salary ~800k hkd Housing - ~200,000 per annum, reducing by a 1/3 each year. Benefits – health, dental, pension, etc, for me and my partner If anyone is in a similar industry, can you share a view on the above? Visa – covers work for both my partner and I Pension – can this be transferred back to the UK if needed? The offer is currently a promotion, but with my APR in the near future, could be a transfer. If it’s the former, would expectations around increases in salary necessarily map to the HK offer, or should they be viewed independently. Those of you who have made similar moves, where did you start to get a fuller understanding of what would be required. Thanks for any insights.