It's very simple. You have to make a will with a lawyer.
If a lawyer violates the code of ethics, he is to be the first one can access your Million BTC for himself. you must be thinking to do not just giving up the seed to the lawyer. He is a human who has a mind and feels if gets stuck needs the money asap and doesn't know how to get it, your seed is very easy to access and immensely helps him.
I think the seed needs to be split to the lawyer and the people you are going to give the funds in case of drying , with this I'm sure there is no one that can take the funds unless they will agreed to each others claim.
giving it completely to the lawyer will surely take the business effect as greediness may take place .
Could you believe that I've been thinking of this subject ever since I first read it and has been bothering me? Anything could happen to anyone at any time, most people are not prepared, and there could be an accident and instant medical conditions like cardiac arrest that could lead to death. But are they prepared? No, so their wallet is gone as well.
It is good to let people know about your crypto assets but split the access into three. Your lawyer may have a document containing your seed phrase and your wife/children or a trusted ally might know the password. While the wallet name might be documented personally where you keep your files.
same here mate , this is why I already let my Wife and my Mother about my assets at least when pandemic comes hard to our lives .
Now that I have something in my health ? My mother and Wife will have the full authority of my assets once bad things happens unexpectedly .
we have worked hard from our assets so we are the only one that will decide where this to be settled when were gone.
decide now mate because we cannot withhold our life even if how bad we wanted.