What does a commercial lawyer do?

Most businesses meet a commercial lawyer the same way: something needs to be signed, something needs to be paid, or something has gone wrong. A supplier's contract arrives with a deadline. A customer stops paying an invoice. A brand name needs protecting before a competitor takes it. A business is on the market, or a franchise agreement is on the table. None of these moments feels like the start of a legal problem, yet each one is exactly where a commercial lawyer earns their keep.

The surprise for many business owners is how wide the work actually is, and how much care even a simple document needs. A one-page agreement can still bind you to an auto-renewing term, an unlimited indemnity, or a dispute clause that sends a fight to an inconvenient forum. The commercial lawyer's job is to make sure the deal you think you made is the deal you actually signed, and that the law is on your side when it counts.

This article explains what commercial lawyers do day to day, and walks through the situations where one can help your business.

What a commercial lawyer does

Commercial lawyers are solicitors who advise businesses on the legal side of commercial dealings. Where a criminal, family or personal injury lawyer deals with the personal end of the law, a commercial lawyer deals with the business end: buying, selling, hiring, lending, licensing, partnering and every other transaction a company enters into. Many commercial lawyers are also litigators, meaning they can run the dispute when a deal turns sour.

The work falls into three broad streams: documenting deals, keeping the business on the right side of the law, and resolving problems. Documenting deals means drafting and negotiating contracts so that rights and obligations are clear, priced and enforceable. Keeping the business compliant means checking that the way it trades, hires, markets and lends does not breach the statutes that regulate those activities. Resolving problems means letters of demand, negotiation, mediation and, where necessary, court proceedings.

A commercial lawyer comes into your orbit at predictable moments. Signing a significant contract, buying or selling a business or its assets, hiring a key employee, adopting a new brand, taking a loan, entering a franchise or chasing a debt are all routine triggers. Most commercial firms will have an initial conversation about your situation at no cost, and many quote a fixed fee for defined work such as a contract review, so you can weigh the cost before you commit.

Contracts: the everyday core of commercial work

The bulk of commercial legal work is contracts. A lawyer drafts or reviews the agreements that run a business: supply and customer terms, confidentiality agreements, leases, partnership and shareholders' agreements, website terms and employment contracts.

When a lawyer reviews a contract, they are checking who bears the risk. Key things they look for include:

• Scope of work: what each side must actually do, and what is excluded
• Payment terms: when money is due, and what happens on late payment
• Indemnities: who compensates whom if something goes wrong, and whether that exposure is capped
• Limitation of liability: whether either side can cap its liability, and at what level
• Termination and renewal: how the contract ends, and whether it silently auto-renews
• Dispute resolution: where and how disputes are decided, including any requirement to mediate first

The traps tend to sit in the fine print. An indemnity with no cap can expose a small business to unlimited liability for events it did not cause. An auto-renewal clause can lock a business into another year of a contract it wanted to walk away from.

Small businesses also have statutory protection worth knowing about. Under the Australian Consumer Law (the ACL), which is Schedule 2 of the Competition and Consumer Act 2010 (Cth), an unfair term in a standard form consumer or small business contract is void, and proposing or relying on an unfair term can now attract a penalty. A lawyer can tell you whether the term you have been offered, or the term your own business uses, is likely to survive that test.

Buying or selling a business

Buying or selling a business is usually the biggest transaction an owner will do, and the structure of the deal determines most of what follows. The buyer can buy the shares in the company, which means taking the company with its history, debts and liabilities. Or the buyer can buy the assets, which lets them choose what they take: equipment, stock, goodwill, contracts and staff, leaving behind what they do not want. The choice affects tax, liability and what needs to transfer, such as leases and employee entitlements.

A commercial lawyer runs the process. Before signing, the buyer's lawyer organises due diligence, checking the seller's contracts, employees, intellectual property, tax position, litigation and debts. The sale documents then allocate risk between the parties through warranties, where the seller promises that the business is as described, and indemnities, which require the seller to compensate the buyer for specific losses that emerge later.

For sellers, the lawyer's role is to make sure the warranties they give are accurate and limited, and that the deal does not leave them exposed after settlement. For buyers, it is to make sure what they are paying for is what they get. Either way, the cost of professional advice is small next to the price of discovering after settlement that the business carried a liability nobody mentioned.

Protecting your brand and your ideas

Brand protection is one of the areas where a small business can get real value from a commercial lawyer early. A trade mark registered through IP Australia gives the owner exclusive rights to use the mark across Australia for the goods and services it covers. Registration costs start at around $250, takes at least seven months, and lasts up to ten years before renewal, so the timing of an application matters.

Before adopting a new name, logo or slogan, a lawyer will run clearance searches to check that the mark is available and does not infringe an existing registration. The searches cost little and can save a business from rebranding after trading under a name that was never theirs to use. The lawyer then prepares the application in the right classes, and can monitor the register and act against copycats later.

Commercial lawyers also protect ideas that are not registrable. Confidentiality agreements stop contractors, suppliers and prospective partners from using or disclosing your customer lists, pricing and know-how. IP ownership clauses in contracts with designers, developers and marketers make sure that the work you pay for is owned by you, not by the person who created it.

Hiring staff and engaging contractors

Employment law touches every business that has staff, and it is a regular part of commercial practice. A commercial lawyer drafts employment contracts that set out duties, pay, leave and restraint terms, and advises on the process of hiring, managing and ending employment.

The law sets a floor that contracts cannot go below. The National Employment Standards in the Fair Work Act 2009 (Cth) guarantee minimum entitlements to all employees in the national system, including maximum weekly hours and paid annual leave, and modern awards can add further minimum pay and conditions for particular industries. A lawyer will check that a contract sits correctly above that floor, and that the business's obligations under awards and superannuation law are met.

One of the most common and expensive mistakes is misclassifying workers. Engaging someone as an independent contractor when the relationship is really one of employment can leave a business exposed to claims for unpaid entitlements, superannuation and tax. A commercial lawyer can assess the arrangement before it is put in place, and can draft the contractor agreement to match the reality of the working relationship.

Restraint of trade clauses, confidentiality obligations and termination procedures are the other recurring issues. Getting the process wrong when an employee leaves can turn a routine exit into an unfair dismissal claim.

Franchising: buying or selling a franchise

Franchising is one of the most regulated ways of doing business in Australia. The Franchising Code of Conduct is a mandatory industry code prescribed under the Competition and Consumer Act 2010 (Cth), and it applies to everyone involved in franchising in Australia. A new Code came into force on 1 April 2025, with some rules applying from 1 November 2025, so current advice matters.

Under the Code, a franchisor must give a prospective franchisee a disclosure document before the agreement is signed, setting out the information needed to make an informed decision. The Code also imposes a duty to act in good faith, gives new franchisees a cooling-off period, and sets out a dispute resolution process through mediation and arbitration rather than straight to court.

For a person buying a franchise, a commercial lawyer reviews the disclosure document and the franchise agreement, and checks the obligations the franchisee is taking on: fees, territory, marketing levies, fit-out costs and exit terms. For a franchisor, the lawyer prepares the franchise agreement and disclosure document to comply with the Code, and handles disputes with franchisees when they arise.

Finance, disputes and getting paid

Getting finance and getting paid are where commercial law meets the realities of cash flow. When a lender takes security over business assets, that security interest is registered on the Personal Property Securities Register (the PPSR), the national register of security interests in personal property. Registration helps determine who gets paid first if the borrower defaults, so a lender's lawyer will register the interest correctly, and a borrower's lawyer will check what the lender is taking. Directors are also commonly asked for personal guarantees, which convert a business debt into a personal one.

When a customer or supplier does not pay, a commercial lawyer works through a ladder of options. A letter of demand often produces payment without a fight. If it does not, negotiation or mediation can resolve the dispute cheaply, and for genuine commercial disputes a claim under s 18 of the ACL may be available: that section prohibits misleading or deceptive conduct in trade or commerce, and it is a common foundation for claims about misrepresentations made during negotiations or in marketing material.

Where the debtor is a company, there is a sharper tool. Under s 459E of the Corporations Act 2001 (Cth), a creditor owed a debt at or above the statutory minimum can serve a statutory demand on the company. If the company fails to comply within the statutory period, that failure can support an application to wind the company up for insolvency. Statutory demands are technical, and getting one wrong can expose the creditor to a costs order, which is another reason the process is best run by a lawyer.

For businesses that supply goods, the consumer guarantees in the ACL are also worth knowing. Goods supplied to consumers must be of acceptable quality, fit for purpose and free from defects, and those guarantees cannot be contracted out of, so a retailer's returns policy and a supplier's liability need to be aligned with them.

When you might not need a lawyer yet

Not every business decision needs a lawyer. A straightforward renewal of a contract that has not changed, a small dispute that a polite letter will resolve, or a routine question answered clearly on a government website can all be handled without professional help. The Fair Work Ombudsman, the ACCC and IP Australia publish practical guidance for free, and the PPSR allows anyone to search whether a second-hand asset is free of debt for a few dollars.

The point is not to push legal work that is not needed. It is to make the threshold for checking comfortably low. Most commercial lawyers offer a free or fixed-price initial consultation, and a five-minute phone call describing your situation will usually tell you whether you have a problem worth acting on. The cost of that check is tiny next to the cost of a void term, a misclassified workforce or a dispute that could have been settled early.

Why early advice is usually the cheaper option

Across every example in this article, the same pattern appears. The decisions made before the contract is signed, before the brand is adopted, before the worker is engaged and before the dispute escalates are the decisions that determine the outcome. A commercial lawyer is the person who makes sure those decisions are informed ones: that the document says what you think it says, that the business is on the right side of the law, and that when something goes wrong there is a path to fix it.

So the practical answer to the question in the title is simple. A commercial lawyer is the professional who keeps your commercial dealings documented, compliant and enforceable, across contracts, business sales, brands, employment, franchising, finance and disputes. If any of those situations is on your horizon, a short conversation with a commercial lawyer costs little and tells you quickly whether you need one. In most cases, the earlier that conversation happens, the less it ends up costing.