Most mortgage brokers don’t have an introducer problem. They have a relevance problem.
It’s relatively easy to build a long list of estate agents, accountants, solicitors, developers and financial advisers. The harder question is whether those businesses regularly encounter the type of borrower you can actually help.
That’s where I think many broker introducer networks become unnecessarily broad. A network of 200 loosely relevant contacts may look impressive, but 20 carefully chosen introducers can be far more valuable if they’re positioned close to the circumstances that create a genuine mortgage requirement.
Start with the borrower, not the introducer
Rather than asking, “Which estate agents should I approach?”, I’d work backwards from the cases I want.
Suppose you specialise in portfolio landlords and limited-company buy-to-let. A residential estate agency completing hundreds of owner-occupier sales isn’t automatically a strong introducer. A smaller agency managing 1,000 rental properties, regularly speaking to landlords about acquisitions, disposals and portfolio changes, could be considerably more useful.
The same principle applies elsewhere.
For self-employed applicants, an accountancy practice advising company directors may sit closer to the financial trigger than an estate agent. Development finance may lead you towards commercial agents, developers and specialist property accountants. Later life lending can make wealth advisers and certain legal practices more relevant.
I think of this as referral proximity: how close is a business to the moment when a suitable client develops a financing need?
That’s a more useful measure than company size.
Look inside the organisation
Finding the right company is only half the job. The useful contact changes with the organisation’s structure.
At an independent letting agency, the owner may personally manage landlord relationships. Within a regional group, those conversations could sit with a lettings director, branch manager or head of property management. Sending the same introduction to a generic 'info@' address treats very different businesses as though they work identically.
Accountancy firms provide another good example. If I’m looking for introductions involving property investors or self-employed borrowers, the marketing manager isn’t necessarily my priority. A partner responsible for owner-managed businesses, private clients or property taxation is much closer to the relevant conversations.
Developers need similar thought. A construction director may be highly influential internally but have little involvement with buyers needing mortgages. A sales director dealing with reservations and buyer progression is positioned quite differently.
The useful question isn’t simply, “Who is senior?” It’s “Who sees the financing trigger?”
Referral volume can be a misleading target
There’s a temptation to judge an introducer by the number of referrals they could theoretically send. I’d be more interested in the proportion likely to fit.
Imagine two prospective partners.
One estate agency handles 600 residential sales a year but has little exposure to investors. Another handles only 150 transactions, yet specialises in buy-to-let property and has longstanding relationships with local landlords.
For a specialist buy-to-let broker, the second relationship may have substantially greater commercial value. More relevant introductions mean less time spent qualifying unsuitable enquiries, fewer disappointing conversations for referred clients and a clearer reason for the introducer to keep using the broker.
There’s evidence that referral relationships can become commercially significant in property services. A 2026 Council for Licensed Conveyancers review found huge variation among the 12 practices it examined. Three reported receiving 85% of their work from introducers, while others received less than 15%. Estate agents were the most common introducer type.
That doesn’t mean every mortgage broker should chase estate agents. It shows how concentrated referral channels can become when the relationship fits the business model.
Build around the client situations your partners already see
The UK’s private rented sector accounted for around 19% of households in the year ending March 2024, according to the Office for National Statistics. Within an ecosystem of that scale, landlords can interact with letting agents, accountants, property managers, solicitors and investment professionals long before they speak to a mortgage broker.
Those interactions are the opportunity.
A letting agent hears that a landlord plans to acquire another property. An accountant sees a director restructuring income before refinancing. A conveyancer deals with an investor disposing of one asset to fund another purchase. These aren’t random networking opportunities but identifiable commercial events.
My preferred approach is therefore simple: map the borrower type, identify the event that creates the financing requirement, find the businesses closest to that event and then locate the person responsible for those client relationships.
That produces a smaller mortgage broker introducer network, but usually a much more intelligent one.
The aim isn’t to know more property professionals. It’s to be known by the right professionals when the right client situation appears.
