You need a ride to the clinic on Thursday, or a shift covered at the food pantry, or someone to pick up a prescription while you are on a late shift. The neighborhood list has eighty names. Pasting the need there feels efficient. It is how the job sits for three days while everyone assumes a closer neighbor will answer.
Ask one person. Name the job. Give them a way to say no without a speech.
One mailbox, one job
Open with the whole request. "Can you pick Maya up from rehearsal at 7:40 on Thursday and drop her at our place? I am on until 8." That is an ask a tired neighbor can answer from a phone. "Anyone free this week?" is a topic, and topics die in a list.
Write for a cold reader. They do not hold your week. Give the time, the place, how long it takes, and what "yes" commits them to. Cut the story of why you are in this bind unless one sentence of it changes whether they can help.
Say what a sufficient reply is. "Yes," "No, try Sam," or "Yes if you can move it to 8." One line. Respect their time. A paragraph about how hard things have been is a different letter. Send that later, or not at all, if the job is the thing you need tonight.
If you already know they cannot do Thursdays, do not send them Thursday. The list is not a lottery. Pick the person whose constraints you actually remember, or say the constraint and let them decline fast.
They may never use an assistant
Most neighbors will not. That is fine. A send to someone with no account is email and a page. They reply from the mail. You still read the exact wording before it leaves — your assistant drafts, it does not speak as you to the block.
If they already have a RelayLink account, you need an accepted contact first. The refusal looks the same either way, on purpose. Do not put your private nickname for them in the note. Use the name they answer to on the street.
Do not attach a flyer or a screenshot. Write the time and the job. Attachments are out of scope. If a sign-up sheet already lives in a folder they use, name the folder.
What this is not
It is not a campaign and it is not a guilt trip. One concrete favor is a correspondence. A manifesto about the neighborhood is a different product, and this one will not carry it well.
It is also not a substitute for the phone call when the ask is medical, legal, or something that needs a voice. A ride time can be written. A crisis should not wait on a briefing.
If they say no, thank them and ask the next person. Do not widen the first message after the fact. A follow-up that turns one ask into a list is the blast again, wearing nicer clothes.
When the next job is sitting in a session, connect your assistant, name one person, and send the time and the job — once — instead of another post that eighty people will scroll past.