Because a person's signature confirms that he has no objection, if he signs for his neighbors and they don't know, it violates their right to know, and it doesn't mean that they have no objection. If there is a dispute, it is difficult for anyone to bear the responsibility and must sign and admit it. Homestead generally does not need the signature of neighbors, and the party with alley road does not need to sign.
You can ask your family to help you write it, as long as it reflects the true wishes of the parties and is signed by the applicant himself.