With the will, you can designate the church to be the executor of the will. That would allow them to handle all arrangements. In the will itself, you can also designate how you wish to handle your final resting place and whether you wish to be buried, cremated, or choose some other option. You may also, if you wish, leave your assets to the church or to multiple beneficiaries; it just needs to be clearly outlined in the will.
Once it's created, you would also need it to be witnessed by uninterested parties and notarized. Then, you would want to have it stored in a safe place for the unfortunate event of your passing.
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My church is going to take care of my death. I have no one.

Have you already consulted with a lawyer regarding this matter?

Yes

Is there anything else the lawyer should know before I connect you? Rest assured they’ll be able to help with your situation.

No

Hi there! My name is Liz and I’ve been an attorney for more than a decade, and I am here to assist with your legal concerns. So I can best help, has the church agreed to handle your arrangements?

Yes, the church has.

With the will, you can designate the church to be the executor of the will. That would allow them to handle all arrangements. In the will itself, you can also designate how you wish to handle your final resting place and whether you wish to be buried, cremated, or choose some other option. You may also, if you wish, leave your assets to the church or to multiple beneficiaries; it just needs to be clearly outlined in the will.
Once it's created, you would also need it to be witnessed by uninterested parties and notarized. Then, you would want to have it stored in a safe place for the unfortunate event of your passing.

I hope this information was helpful. Have a wonderful weekend.
