What's worth doing with a list of old leads and past clients?

Write to them. Not all of them, not all at once, and not with the same message. A list of past clients and old leads is usually the most valuable list a small firm owns and the least worked. Handled with care, it gets answered at a rate cold outreach never comes near. Handled like a mailing list, it gets you told, politely, that your note read like a mass message. I know the second outcome firsthand.

Why it's worth the trouble

On one campaign this fall, plain messages to people the owner had actually worked with drew replies about half the time, 21 of 41. Over the same weeks, connection requests to carefully chosen strangers were accepted about 1 in 9 times, 12 of roughly 105. And accepting isn't replying. It's only the door opening.

That gap is the whole argument. People answer people they know. Most owner-led firms I see have a few hundred people who already trust them and haven't heard from them in a year or more, and they spend their business development energy looking past those people toward strangers.

The list I got wrong

When I started reaching out for my own practice, I wrote to about 37 people I knew. Four replied. One told me, kindly, that it read like a mass message.

She was right, and for two reasons. The note ignored real history. One person on that list had asked me years earlier how I find clients and never got a real answer. Another had a call on the calendar with me that died on a bad connection and was never rescheduled. A friendly general hello to either of them skipped over the only thing that mattered.

The bigger mistake was the list itself. Most of those people had once pitched me: accountants, bookkeepers, advisors. Good people, some of whom may well send me business someday, but they were never going to buy what I do. I had treated a warm list as a buying list. Warm means they'll read your note. It doesn't mean they need you.

Sort before you write

Before anyone gets a message, put every name in one of these piles.

1. People who paid you. Past clients. The warmest group, and the most likely to have a new need or know someone who does.
2. People who raised a hand and got dropped. They said yes and never got booked, asked a question nobody answered, or said "after the first of the year" and never heard back. Often the best money on the list, and almost always owed an apology.
3. People who said not now. Timing changes. Ask whether it has.
4. People who know your work but won't buy it. Peers, adjacent professionals, people who once pitched you. This is not a buying list. Some of them are good referral partner candidates, which is a different conversation with a different purpose.

Leave out anyone you met once and couldn't describe, and anyone already in an active conversation with you or someone on your team. Two people writing to the same person is how a warm contact becomes an annoyed one.

Start with piles one and two. If the list is long, pick the twenty or so you can write to properly this month rather than three hundred you can't.

Read the history first

Before sending a routine reconnect on an owner's behalf recently, I read back through the thread. It wasn't empty. About three years earlier, the man on the other end had written to the owner, introduced himself, attached a short bio, and asked for a call. Nobody answered. There was no reason. A note arrived, the week filled up, and it slid.

The message about to go out was a pleasant, general hello. For him it would have read as: you didn't notice me then, and you still haven't. We held it. The note that replaced it opens with a short apology for the message that went unanswered, then asks whether the conversation he wanted is still worth having.

So the rule is simple and a little tedious. Open every thread, email, and call note before you write a word. It takes a couple of minutes a person. That's the price of a note that sounds like you remember them, and it's the reason to keep the batch small.

What to say

A history-first note has three parts:

• One sentence about what actually happened last time. If something was dropped on your side, own it plainly and briefly.
• One line on why you're writing now, about them or about a real change, not about your new offer.
• One easy question they can answer in a sentence.

Two examples, with the details changed:

Dana, the last time we talked you were about to hire a second operations lead, and I said I'd check back after the summer. I didn't. How did it go?

Sam, you wrote to me a while back asking for a call, and I never answered. I'm sorry about that. Is the conversation you had in mind still worth having?

No calendar link in the first note. If they want to talk, they'll say so, and then you make booking easy and fast.

What not to send

• An announcement of your new service to everyone at once.
• "Just checking in" or "hope you're well" with nothing behind it.
• The same note to a past client and a near stranger.
• A run of form messages to people who know you. I sent two to a couple of people before writing what I should have written first, and the better note then had to own that as well.

Where this falls short

A reply isn't a client. Half the list answering sounds good, and it is, but most replies are friendly catch-ups. A few become conversations, and fewer become work. This also only works when the history is real. If you never did much with these people, no wording turns the list warm.

And it costs the owner something. These notes should come from you, in your words, and the replies need answers quickly. I've seen warm replies sit six to ten days because every one routed through an owner with a full client load. Before you send the first note, decide what a good answer to the likely replies looks like, so most can go out the same business day.