to feel uneasy about this

[STATUSQUO63]

So dh has 2 brothers. Their father has died and has left them maybe 150k each in the will after debts etc. This is enough to pay our mortgage off and leave us with a 75k ish cushion. Their wifes including me have each been left 10k.
So we have a 9 year old a 7 year old and a 2 year old and I sah. Dh has a job earning maybe 65K. He has today resigned as he is unhappy at work and quite frankly his brothers have encouraged him to resign as life is too short which I get to a certain extent.
He has to work a months notice so we have an income for a month and a one month savings cushion. now if fils flat sells quickly we will be ok but if not we will struggle.
The brothers have discussed it and have decided that there is enough money to pay the fixed legacies to the wifes.
aibu to be worried that my legacy is likely to be eaten up paying regular bills whilst waiting for funds to come though.
dh has sad he will top it up but it still doesn't sit right. quite frankly I actually find it weird that I have been left money at all.
So aibu to feerl a little uneasy about this situation.

time for you to get a job OP

I forgot to mention and I don't want to scare you but ... We are beneficiaries of my late uncles estate, he passed away over 2 years ago and monies still haven't been distributed

I agree with a few of the previous posters about getting a job. What's done is done and there may be more behind it than simply throwing caution to the wind (eg unbearable stress which may cause a breakdown etc etc). You say you wouldn't earn a third of what he earns, but you will earn a more than a third of £0! If he happens to get something, great...but for now I think you need to step up and get a job as a fallback. As for him being a SAH dad - 1) why are you with someone who is crap with your kids and can't be relied upon?; and 2) maybe now is the time for him to step up and learn how to become a good SAHD.

P.S. As for the lawyer point, unless you're a lawyer at a big Corporate firm in the City or a partner at a major national, you won't be on anything like £65k! Many will be on less than half of that!

He's been reckless for sure, but has the death of his father had a huge effect on him? I know it really threw Dh, he ended up changing paths etc.

He had been making noises about leaving prior to his dads death.
In terms of being a lazy parent (crap) he wasn't always like that. When we had our 1st two he was fairly hands but worked more locally. As they got older he naturally did less as I was only doing a bit of party plan and the kids were at school.
than we had a surprise pregnancy and he just never really stepped up. However, he did have a longer commute and deep down I think he thinks that being a sah is the easy option. Hence why he is less hands on in the evening. I think he thinks that 2 year old can entertain themselves and than gets cross when she does something she shouldn't upstairs. At the time he was downstairs watching tv and I was out. Hence the lazy bit. I seriously can't see him attending toddler group s or school open evenings etc. I actually asked him if he wanted to do last one but declined.