Most assured way, place it in a managed trust with enough money to keep it running or a way for it to generate enough money that it fills the trust with operati

Most assured way, place it in a managed trust with enough money to keep it running or a way for it to generate enough money that it fills the trust with operational funds to cover costs. While you are alive you control the trust, upon your death it would be managed by a trustee. Probably other ways, but this one will work, that is how family assets are handled many times and also can handle tax complications cleanly etc. There are multiple legal structures btw that accomplish the same thing. If it is truly critical this is the tried and true way to make it happen at least to my knowledge.