u/Realistic_Eye_7116

I (25) have just landed a new job with the option to open an HSA. The thing is, I plan to expatFIRE in my early 50s. Since HSAs are only allowed to be used for health/medical expenses... how would that work if I am no longer in the USA. Should I even bother with it or is there something else you would suggest? Is there something that I'm missing that would make it make sense for me to use it? I also plan on giving up my US citizenship as well.

My parent (quit their job) and all us children (at the time) moved into our grandparents' house back in 2018 to help one grandparent take care of the other with the promise that my parent would likely get the house once they both passed in thanks. We stayed and helped take care of them for years until the one with the most health issues passed last winter.

When my parent took their parent to their most recent will update, they discovered that they have no plan to leave my parent the house (like they had implied earlier) and instead want it sold so that the money is split evenly between their three children (one of which married really rich and therefore the money would do nothing for).

I'm pissed because this means after they pass we will be homeless and I know I'll be left as the only source of income in my immediate family and I don't earn enough to cover the bare minimum for all of us, not including housing which we'll have to find. Knowing them, they will never change their mind as it was apparently something their spouse wanted before they died. I'm feeling sorta betrayed by this (especially since I turned down my dream job last year that would make me move a few states away so that I could further help take care of them since I'm the one they tend to listen to the best not matter if they are having a memory fit or not and they know it.)

Edit: to add more details

To preface, let me explain my situation. I am the youngest of 3 children, one of my older siblings cannot work due for reasons that I will not go into, and my other sibling isn't working and I'm not even sure if they are applying jobs and they snap at me every time that I ask and I'm tired of being attacked over it. My only parent can't work because taking care of their only living parent and the sibling that can't work is a full time job. I am the only person in this household with an income (if we ignore my grandparent's minimal income from SS).

Here's where the issues arises. My parent isn't their only child and my grandparent has their mind set on selling the house (that all 5 of us live in) after their death so that the proceeds can be split evenly among their children. I don't make enough to rent a place and cover food for all of us, but since I'm still early in my career I'm kinda stuck where I am until I have more experience and can get a better paying job.

I'm currently doing everything that I can to save money to prepare, but with how old my grandparent is and everything I'm not sure how I'm going to manage financially once they inevitability pass on. I have almost everything I have saved in a HYSA because who knows how long my grandparent will last, since their spouse died last winter. But is there anything else I should be doing or have in mind to prepare financially?

I currently have ~50k saved and I know that my parent will receive between 300-450k when their parent passes depending on a few different factors.

As I'm going to become the sole income for my family as soon as my grandparent dies, is there anything specific you all can recommend for me since I have no idea when this will happen?