How do I clean the property and house

That typed letter does NOT meet the requirements for a "holographic will." A holographic will must be written entirely by the deceased person in their own writing. But you can try to submit it for probate. If no one objects, and particularly if you have other neighbors who can testify that you had a very close relationship with the person who died, the judge might admit it to probate. If you're the one filing for probate, you would at least be entitled to the executor's fee, even if the judge rejects the will and orders the estate given to the closest relatives.