We basically divide our assets between UK (my home country), Singapore (offshore for both), Thailand (my host country, wife's home country)
UK has assets in my name only. I have a UK will
Singapore has assets in joint names. We both have Singapore wills.
Thailand has assets in my name only, my wife's name only, and previously joint. We both have Thai wills.
Our house, condo and mortgage are in my wife's name. So she will always have a roof over her head. When we sell the condo proceeds will be used to wipe out the mortgage, leaving a debt free house/home.
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My wife has investments in her name in Thailand as well as bank accounts in her name in Thailand. These would tide her over until she could access assets elsewhere in the world.
This is why I often start threads on investing in Thailand. While the investments in Thailand aren't always best of best, and there are often better / cheaper overseas (with the exception of Thai based/ equity funds), the convenience and access for a Thai person to deal with locally in their own language, should never be underestimated.
Some of our investments in Thailand were in joint names, where either can sign. Though recently we've got rid of these because they were with Aberdeen. I will look to take out some in future though.
Similarly almost all our investments in Singapore are in joint names where either can sign.
In both Thailand and Singapore we have a dedicated relationship manager as part of the Priority Banking services. In both cases I have confidence that my wife could contact either to ask for assistance on how to process things.
UK stuff is all in my name. Wife has no access
One thing I haven't got round to is a living will. (Can't remember if that's the correct term). My mum has done one. Basically my brother and I have a Power of Attorney to act on her behalf if she becomes incpacitated. At some point I may get round to doing similar for me - particularly for UK assets.
Both my brother and my wife would then be able to access my UK assest if I became incapacitated.
I don't know whether anything similar is possible in Thailand
For Singapore of course it's not needed as everything is in joint names.
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So in case of my death:
UK will in place, Singapore will in place, Thai will in place
In case incapacitated:
UK - I will maybe think about living will in future, where both my wife / brother could access
Singapore - joint names anyway + RM to help
Thailand - Don't know if a living will is possible, assets in wife's name, + RM to help