Forget the corner office. In today’s legal world, your book of business is one of the clearest measures of what you bring to a firm, and it may include more than the revenue formally credited to you.
Your book of business includes the client relationships, loyalty, cross-selling opportunities, and growth potential you’ve built over the years. It can also play an important role in career and compensation discussions.
Law firm partners often believe they have a firm grasp of their book’s value, but from what I’ve seen, they tend to underestimate it. After all, you know your clients inside and out, along with your annual revenue contributions. But those numbers may not capture everything you bring to the table.
What you may be overlooking in your book of business
Some of the biggest opportunities in your book of business may be the easiest to overlook. Client relationships that do not appear under your origination credit, work you regularly refer out, and demand tied to a niche practice can all add to the bigger picture.
Portable clients
Portable clients can include people you did not originally bring to the firm but who now rely primarily on you. Your relationships with certain clients have developed into trust, respect, and rapport over time. They’ve come to value your guidance and judgment, so you may be the lawyer they contact first.
Portable clients don’t include only the clients you’ve brought in yourself. They can also include those whose loyalty you’ve built over time. Even if another attorney at your firm is credited with the origination, you might be the one they talk to all the time and rely on as a trusted advisor for all their legal needs. If clients call you first, there’s a chance they could be part of your book, regardless of who first introduced them to the firm.
That doesn’t mean the business will automatically follow you. Client choice, conflicts, rates, practice capabilities, geography, and the client’s relationship with your current firm can all affect portability. Those are also factors firms will examine as part of the Lateral Partner Questionnaire.
Revenue potential
Your current revenue may not capture all of the business your client relationships could support. Your firm’s practice areas or geographic reach can limit the work you take on for existing clients, leaving opportunities outside your current book of business.
Another potential source of revenue is work you have to refer out. For example, if you’re receiving five M&A referrals a quarter or multiple trust and estate referrals a month but need to send them to another firm, those are opportunities you could capture at another firm.
It’s important to think about why the work is being sent out. If your firm doesn’t offer the practice areas or geographic reach your clients need, you could be leaving significant revenue on the table.
Niche specialization
Niche specialization can add to the potential of your book when clients seek you out for a particular type of work. In areas like AI or cybersecurity, your reputation can strengthen the client relationships and business you bring with you.
But demand for individual practice areas changes. The stronger indicator is whether clients consistently come to you for that work and whether those relationships have room to grow.
Why you might be undervaluing your business book
Rainmakers often undervalue their books because they focus on formal origination credit and current revenue instead of the client relationships and opportunities behind those numbers. You may not have brought in a client initially, but you may have become the person they rely on for their legal needs.
Identifying what you may be overlooking is a useful place to start.
Overlooking why clients stay
It’s a common mistake to assume that client loyalty lies with the firm when, in some cases, the trust and rapport you’ve built may be an important reason they keep coming back. Unfortunately, this value can go unnoticed in some firms.
Focusing too much on origination credit
Just because someone else originated the business doesn’t mean the origination report tells the full story, especially if you’re the one building and maintaining the client relationship. Your ongoing work, including time spent outside regular business hours, keeps the relationship strong. That contribution should be part of how you assess your book.
Ignoring your potential
Your current billings may understate the growth potential tied to your client relationships. Look at adjacent markets, work you regularly refer out, client needs your firm cannot meet, and complementary practices that could expand an existing relationship.
Undervaluing what you bring
Your book of business can strengthen your position in compensation and career discussions. You’ve put in the hard work and nurtured client relationships. Acknowledging those contributions can help you evaluate what you need from your current firm or a future platform.
If you want to put a number around those distinctions, start with how to value your book of business.
How to use your book of business
You can use a strong understanding of your book to advocate for resources at your current firm, make a strategic lateral move, or support discussions about an acquisition.
Maximizing internal influence
Your book of business is like your internal currency. It can support conversations about better resources, more support, or a stronger role in shaping your firm’s strategy.
If you see a gap in the market, your book and past track record can help support a proposal for a new practice area or capability.
Negotiating a lateral move
Firms often look for proven rainmakers with a solid client base, and your book of business sets you apart. A clear understanding of your book can help you evaluate an offer and whether the firm is a good fit for the business you want to grow.
If you back your case with concrete data, including client retention, historical revenue, relationship strength, and growth opportunities, you can give firms a more credible picture of the business you may bring.
Positioning for acquisition
For small firm owners, a book of business can also be an important part of discussions with a larger firm. Firms may look for opportunities to expand into new markets or practice areas, and your firm might offer a complementary client base or practice.
Highlight how your strengths, including cross-selling potential, strategic fit, and an established client base, complement the larger platform. The clearer the case for integration and future growth, the easier it is to show the opportunity.
Unlock the full potential of your book of business
Using your book of business effectively starts with understanding both the business you have today and the opportunities around it. Here are a few strategies to amplify your influence and strengthen your position.
Solidify your relationships
Go beyond transactional interactions by understanding your client’s goals, challenges, and values. This will allow you to anticipate their needs better and offer proactive solutions. Regular check-ins will help solidify your position as an indispensable resource, a trusted advisor for their needs.
Expand your reach
Grow beyond your current client base by identifying adjacent markets and cross-selling complementary services. Build a strategic referral network that fits your particular practice area and makes sense for you. Diversifying your offerings opens up new revenue streams and uncovers fresh growth opportunities.
Establish yourself as an authority
Position yourself as a leader in your field by speaking at industry events, publishing articles, and sharing your knowledge widely. This helps build trust and recognition in your practice area. As your reputation grows, you’ll naturally attract new clients and reinforce your value with existing ones.
Focus on the metrics that help you understand client growth
Track retention, revenue growth, referral sources, and other indicators relevant to your practice. Be realistic about your performance, but don’t shortchange your potential. Keep the bigger picture in mind, and remember that joining a larger platform or accessing new resources might accelerate your growth potential.
Understand the book you have built
Understanding your book means looking beyond credited revenue to the client relationships, portable business, and growth opportunities you have developed. A clearer picture of your book can help you evaluate the support and opportunities available at your current firm or decide whether another platform may be a better fit.
Want to put numbers around your book of business? Check out the Book of Business Calculator.
If you want to talk through how your book could fit into a lateral move, book a call with us.
