The three documents nearly every business owner is missing — and later regrets

There's a particular phone call I've taken more times than I can count. A business owner, stressed, dealing with something gone badly wrong — and as they talk, the same thought forms every single time: this would have been nothing, if only they'd sorted one document a year ago.

That's the frustrating truth about business law: most disasters are preventable, and preventable cheaply. But prevention is boring and invisible, so it always loses to whatever's urgent this week — until the thing you didn't prevent becomes the most urgent thing of all. Three documents in particular save owners from the worst of it. For each, I'll tell you what it's for, the specific things a good one contains, and how to check the one you've got is actually worth having.

1. A shareholder agreement

If you own a business with anyone else and don't have one, fix this first. A shareholder agreement is the private rulebook between owners: it decides what happens when the human realities of ownership arrive — when someone wants to sell, leave, bring in a relative, stops pulling their weight, or dies. Your company's articles of association — the public, off-the-shelf document every company has — don't handle any of that in a way that protects you.

What a good one actually contains. Don't take a document on faith because it's thick. Look for these by name:

• Pre-emption rights — nobody can sell their shares to an outsider without first offering them to the existing owners. This is what stops a co-founder selling to someone you can't stand.
• Good leaver / bad leaver provisions — how a departing owner's shares are valued depends on how they leave. Someone who's ill or retires (a "good leaver") is treated differently from someone dismissed for misconduct (a "bad leaver"). Without this, every exit is a fresh negotiation in the worst possible atmosphere.
• Drag-along and tag-along — if a buyer wants the whole company, drag-along lets the majority require the minority to sell (so one holdout can't block a good exit); tag-along lets the minority join a sale on the same terms (so they're not left behind with a new majority owner they never chose).
• Reserved matters — the big decisions that need everyone's sign-off, so nobody gets steamrolled and nothing important slips through.
• Death and incapacity — often paired with cross-option agreements and life cover, so the value goes to the family and the shares stay with the business.
• A deadlock mechanism — a defined route out when two owners simply can't agree, before "we can't agree" becomes "we're winding up the company."

I've watched genuinely good businesses torn apart because two founders never wrote down, while they were friends, what would happen if one wanted out. The fall-out turned every unanswered question into a fight, and the fights cost more than the agreement ever would have — in fees, in time, and in a friendship that didn't survive.

2. Proper terms of business

Your terms are the rules of engagement with everyone you deal with. They decide when you get paid, what you're liable for, who owns the work you produce, and how a relationship ends. Most small businesses are in one of two states: no terms at all, or something a former employee copied off the internet years ago that nobody has read since. Both are a problem — and the second is arguably worse, because it gives you false confidence. A limitation clause a court won't enforce feels like armour right up until you need it and find it's paper.

What a good one actually contains. The clauses that earn their place:

• Payment terms — when you get paid, and your right to interest and a fixed recovery charge on late commercial payment (a right most businesses have and never invoke).
• A limitation of liability that's actually enforceable — a realistic cap, drafted for your business, not a blanket "we're never liable for anything" that a court will strike out.
• Intellectual property — who owns what you create, spelled out.
• Termination — how either side ends it, and what happens to work in progress and money owed.
• Dispute resolution — how disagreements get handled before they reach court.

Terms drafted for how you genuinely trade — once, properly — are about the cheapest insurance a business ever buys. And they do a quieter job too: clear terms prevent disputes as much as they win them, because when everyone knows the rules up front, there's far less to argue about later.

3. A will and a lasting power of attorney

Not strictly business documents, which is exactly why owners skip them — and exactly why they shouldn't. For an owner, they're as much about the business as anything here.

Your will decides what happens to your stake when you die, and it has to line up with your shareholder agreement or the two contradict each other. The classic trap: a will leaves the shares to a spouse, while the shareholder agreement says those shares must first be offered to the co-owners. Both can't happen, and the family lands in the dispute you were trying to spare them. Get them aligned and, as a bonus, business assets can attract valuable inheritance tax reliefs — but only if the will is drafted to preserve them.

The lasting power of attorney covers the possibility everyone forgets: not dying, but being alive and unable to make decisions — an accident, an illness, a stroke. If you're the director who signs the cheques and you lose capacity with no LPA, nobody, not even your spouse, automatically has authority to step in. The business can freeze while your family applies to the Court of Protection, which takes months and costs far more than the LPA would have. For an owner-managed business, that gap between "the owner is out of action" and "someone can legally act" is a live wire, and the LPA removes it.

The two-minute audit

Right now, before you forget, run this on what you've actually got:

• Do you own your business with anyone else? If yes — do you have a signed shareholder agreement, and does it contain pre-emption, good/bad leaver and a deadlock mechanism? "We've got the articles" is a no.
• Pull up your terms of business. When were they last reviewed, and were they written for your business or borrowed? If you can't answer, treat that as a gap.
• Do you have a current will — made or reviewed since your business, your marriage and your children — and does it deal with your shares in a way that matches your shareholder agreement?
• Do you have a property-and-financial-affairs LPA in place, with the right provisions for the business?
• Bonus: does the company actually own its brand, code and key assets, or were some created by a freelancer or a founder personally and never formally assigned across?

Every "no" or "not sure" is a predictable emergency waiting for a bad day.

The thing they all have in common

Timing. Every document here is quick, calm and cheap to sort while everything's fine — and slow, fraught and sometimes impossible once it isn't. The shareholder agreement you write while you're friends costs an afternoon; the one you try to negotiate mid-fall-out may never get signed. The best time to sort these was when you started. The second-best is this week, because the entire point of them is that they exist before you need them.

If your audit turned up gaps, have a chat with us. It's the kind of thing that takes an afternoon and saves a year of your life.

This article is one solicitor's view and general information, not legal advice — always take advice on your own situation before acting. Buzz Solicitors is a trading name of AD Solicitors Limited, a recognised body regulated by the SRA (no. 8011228).

Robert Festenstein

Solicitor · Head of Legal, Buzz Solicitors

A solicitor with more than two decades' experience in commercial law, dispute resolution, insolvency and judicial review. Robert acts for businesses, directors and individuals on the matters that carry real consequence — and leads Buzz Solicitors.