The couple signs from their phones, each on their own fields, and the AI takes care of the rest. You deal with the banks — not the paperwork.
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Start freeTL;DR: A mortgage broker sends the fee agreement and borrower authorization to both borrowers on WhatsApp. Each gets a personal link, signs from their phone in about 30 seconds, and the sealed documents land in the archive with a full audit trail — before the first meeting.
Every mortgage broker and advisor knows the pattern. A great discovery call with a young couple, real chemistry, they are "definitely in." You email a fee agreement as a PDF, ask them to print, sign, scan, and send it back. Three days pass. A week. The couple goes quiet — or worse, they keep asking you questions and taking your guidance while the agreement sits unsigned.
That gap between the discovery call and the signed engagement is where mortgage practices leak money. Not because clients are dishonest, but because every day of friction cools the momentum, and because any work you do before the signature is, commercially speaking, free consulting.
This guide covers the whole workflow: why the fee agreement and the borrower authorization must be signed before you start, what belongs in them, why electronic signatures hold up, and — the part that matters most in mortgage work — how to get two borrowers to sign the same document from two different phones in two different places, without a printer, a scanner, or a scheduling nightmare.
One note before we start: this is general information and common industry practice, not legal advice. Have a lawyer review your specific agreement templates.
The short answer: because advisory work is knowledge work. Once you have analyzed a client's situation and pointed them in the right direction, the value has already been delivered — and without a signed agreement, nothing obligates them to pay for it.
Mortgage advice is uniquely exposed to this problem. Your product is insight: which lenders fit this profile, how to structure the loan, what rate is actually achievable. A client can absorb all of that in one enthusiastic call, thank you warmly, and take it straight to a bank branch or a cheaper competitor. The three recurring failure patterns:
The fix is a workflow rule, not a legal trick: sign first, work second. The discovery call is free; the moment you start pulling data, building a loan structure, or approaching lenders is the moment a signed agreement must exist. And the only way to make that rule survive contact with reality is to make signing effortless — a link the client can tap while the call is still warm.
A fee agreement (engagement letter) is the contract between the mortgage broker and the client that defines the scope of the service, the fee, and the trigger for payment — for example, approval in principle or completion of the loan. It is the document that turns your expertise from a favor into a billable service.
There is also a quality-filter effect worth naming: a couple willing to sign a clear, professional agreement within an hour of the call is a serious couple. A couple that is "about to sign" for two weeks is doing you a favor by disappearing early.
The short answer: it is the client's written permission for you to approach lenders and relevant parties on their behalf — to request information, submit applications, and negotiate terms. Financial institutions will not discuss someone else's file with you without it, and rightly so.
A mortgage file starts with data: existing obligations, current mortgage balances, credit standing, what each lender can realistically offer. To assemble that picture and negotiate for the client, you need the client to authorize you — in writing. Banks and lenders are bound to protect customer confidentiality, so standard industry practice is that a representative's inquiry is backed by a signed authorization from the customer.
There is a privacy dimension too. Collecting and processing a client's personal financial information should rest on documented, informed consent — under the GDPR in Europe, and under equivalent privacy frameworks elsewhere. A well-drafted authorization that includes consent to collect and process the required data protects the client and protects you.
A borrower authorization (in the mortgage-advisory sense) is a document in which the client authorizes the advisor to act on their behalf with lenders and relevant parties: to request information, receive details of existing loans, submit applications, and negotiate terms. Its scope is defined in the document itself — it is a working tool, not a blank check.
Now the practical trap: the authorization must be signed by every borrower. When a couple borrows together, one spouse's authorization does not cover the other's data. So from day one, you need two signatures, on the same document, from two people who are rarely in the same room during business hours. This is exactly where paper-based signing collapses — and exactly what multi-signer digital signing solves. More on that below.
One honest boundary: distinguish between your documents — the fee agreement and the authorization between you and the client — and lender-specific forms. Some lenders have their own procedures and may require certain forms to go through their own signing process. Your engagement documents are ordinary contracts, and that is where digital signing shines.
The short answer: yes. In the US, the ESIGN Act gives electronic signatures the same legal standing as handwritten ones for most contracts; in the EU, the eIDAS regulation does the same across all member states. Fee agreements and advisor authorizations are ordinary contracts — signed electronically every day.
The legal foundation is more than two decades old. The US ESIGN Act (2000), together with UETA at the state level, established that a contract cannot be denied legal effect merely because it was signed electronically. In the European Union, eIDAS created a uniform framework recognizing electronic signatures across all member states, with defined tiers up to qualified signatures. Israel's Electronic Signature Law of 2001 follows the same principle. Wherever you practice, the engagement documents between an advisor and a client are standard commercial contracts with no special form requirement.
And in a dispute, the real question is rarely "is an e-signature valid?" It is "can you prove who signed, when, and what exactly they signed?" This is where a documented digital signature beats paper decisively: a document signed through okdoc carries a complete audit trail — timestamps, IP address, device identification, and the full event sequence from delivery to signature. Try extracting that from a page signed on a kitchen counter.
An audit trail is the automatic evidence record attached to every digitally signed document: when it was sent and to whom, when it was opened, when it was signed, from which IP address and device. In a fee dispute, it turns "I never signed that" into a claim that is very easy to refute.
The market has voted on this. The global e-signature market is estimated at around $12.2 billion in 2025, growing at roughly 39% annually (Precedence Research), and by 2025 more than 80% of organizations are estimated to use e-signatures. Digital signing is not an early-adopter experiment; it is how business signs. For a deeper dive into validity and evidence, see our guide to digital signatures.
Two honest caveats: lender-specific forms may need to follow the lender's own process, and none of this is legal advice for your specific jurisdiction or template.
The short answer: with multi-signer roles. In okdoc, each borrower gets their own personal WhatsApp link, signs only their own fields from their own phone — in parallel or in sequence — and the document seals automatically once both have signed.
This is the section this guide exists for, because the hardest part of mortgage paperwork is not getting a client to sign — it is getting two clients to sign. A mortgage is almost always a couple's project: two borrowers, two IDs, two signatures on the fee agreement and two on the authorization. In real life, one is at work across town and the other is in back-to-back meetings, and trying to get both in front of the same sheet of paper is why files stall for a week.
Here is the multi-signer flow in okdoc, step by step:
1. Upload the document once — your fee agreement or authorization, as PDF or Word. Save it as a template and never rebuild it again. 2. AI places the fields for both signers — the system detects where names, ID numbers, dates, and signatures belong, and assigns each field to the right role: Borrower 1 and Borrower 2. No manual box-dragging. 3. Enter two phone numbers — each borrower is a separate signer with their own mobile number. 4. Each borrower gets a personal WhatsApp link — not one shared link forwarded between spouses, but a dedicated link that takes each signer exactly to their own fields. 5. Choose parallel or sequential — both can sign at the same time from wherever they are, or you can set an order: the second borrower's link goes out automatically once the first has signed. 6. The document seals when both have signed — the moment the second signature lands, the document is finalized and everyone — both borrowers and you — receives a locked, signed PDF.
Multi-signer is the ability to have several people sign the same document, each through their own personal link and each signing only the fields assigned to them. The document seals only after every signer has completed their part — no phone-passing, no chasing.
In practice, this kills the classic blocker: "my husband will sign when he gets home." He will — from his own phone, through the link already waiting in his WhatsApp. And if he forgets, the system reminds him automatically. The same mechanism handles three-borrower files (a parent joining as co-borrower, for example): add a third signer role, done.
The short answer: you upload the document, the AI places all fields automatically, you enter the phone numbers and hit send. The client taps the link, fills their details, and signs with their finger — in the phone's browser, no app, no account, no password.
The full flow, because this is where theory meets the street:
1. Upload — drag your fee agreement into okdoc, or start from your saved template and skip this step entirely. 2. Automatic field placement — the AI scans the document and places every fill and signature field: both borrowers' names and IDs, the date, the fee amount, two signatures. You just review. 3. Send via WhatsApp — enter both numbers; each borrower receives a WhatsApp message with their personal link. Email works too, for clients who prefer it. 4. The client signs on mobile — the link opens in the browser. The client sees the document, fills their fields, draws their signature with a finger, taps confirm. Thirty seconds, from the couch. 5. Everyone gets a copy — once all signers finish, the document seals and signed copies go out to all parties. Yours is already filed in the archive.
Why does the channel matter so much? Because an email with an attachment is a task ("I'll open it from my laptop tonight"), while a message with a link is an action for right now. That difference sounds small; it is exactly the difference between an agreement signed while the discovery call is still warm and an agreement that waits three days and dies.
Speed of signature is not a convenience metric — it is a close-rate metric. A couple that just finished a great call with you is at peak motivation for about an hour. An agreement that reaches their phones within five minutes gets signed at a rate no print-and-scan process will ever touch.
The short answer: stop chasing manually. Set automatic reminders on WhatsApp and email that fire until the document is signed, and put a direct template link on your website and social bio so hot leads can sign themselves immediately.
Post-call ghosting is the most expensive leak in a mortgage advisor's funnel — not because prospects are unserious, but because life happens. They were excited, then a child got sick, a weekend passed, they forgot. Every passing day lowers the probability of a signature, and manual nudging both eats your time and feels needy.
The fix has two parts:
Automatic reminders. In okdoc, an unsigned document generates automatic reminders — WhatsApp and email — until the signature is complete. With a couple, the system knows exactly which of the two has signed and which has not, and reminds only the one holding things up. You do not have to remember anything or be the nag; the system is the nag, and it is very good at its job.
A direct template link. Every template in okdoc has a permanent direct link (in the okdocai.com/t/... format) that anyone can open, fill, and sign — without you sending anything. Put it in your Instagram bio, your email signature, your website's "get started" page. Now a motivated couple has an instant path: they tap, fill, sign. You get a notification that a new agreement was signed — sometimes before you have even sent your follow-up message.
Together, these two flip the dynamic: instead of you chasing clients, the process chases itself. Hot leads self-sign through the link; hesitators get systematic reminders; you spend your hours on the thing that actually requires you — the advice.
The short answer: in one cloud archive. Every signed document is stored as a sealed PDF with its full audit trail — timestamps, IPs, event sequence — and is searchable in seconds. In a fee dispute, that is the difference between a claim and proof.
An active practice produces at least two signed documents per file, dozens of files a year. Within a couple of years you are managing hundreds of documents, and "where is the Cohen agreement from 2024" becomes a livelihood question, not a filing question. The digital answer:
Now the scenario nobody enjoys imagining: the loan closes, your invoice goes out, and suddenly "we never agreed to that amount" or "my wife never signed anything." With a binder of scans, you are in a version war. With a digital archive, you produce — in one minute — a sealed agreement plus a record showing that each spouse received the document on their own WhatsApp, opened it, and signed it from their own device, with exact times and IP addresses. Most disputes end right there, long before lawyers.
The short answer: you start free with 3 documents, no credit card. Paid plans scale up from there — including a Business tier with Sign&Pay, which lets the client sign the agreement and pay a deposit on the same screen. Every new signup automatically gets a 14-day Business trial.
The honest math: a mortgage advisory fee is measured in thousands. If a frictionless signing flow saves you one file per year — one couple that would have evaporated between the discovery call and the signature — the tool has paid for itself many times over. Everything else it saves (chasing time, printing, filing, the occasional dispute) is margin.
Three free documents are exactly enough to run one real file — an agreement plus an authorization — on a live client and feel the difference. The automatic 14-day Business trial means you can also test Sign&Pay, collecting a deposit at the moment of signature, before paying anything. Full, current plan comparison on the pricing page.
In most jurisdictions, yes. The US ESIGN Act (2000), the EU's eIDAS regulation, and equivalent laws elsewhere give electronic signatures legal effect for ordinary contracts — which is what a fee agreement is. The audit trail typically makes the digital version easier to prove than paper. Not legal advice; check your jurisdiction.
The agreement and authorization between you and your client are ordinary contracts, and digital signing works well for them. Lender-specific forms follow each lender's own procedures — some must go through the lender's process. In practice: your engagement documents go digital; lender forms go however the lender requires.
You define two signer roles. Each borrower receives a personal WhatsApp link, opens it on their own phone, and signs only their own fields — in parallel or in sequence. When both finish, the document seals automatically and everyone gets a signed copy.
The document waits in a partially-signed state, and automatic reminders go out — only to the borrower who has not signed yet. You can see at a glance who signed and who is holding things up, without asking or chasing.
No. The link opens in the phone's browser — no download, no account, no password. The client fills their fields and signs with a finger. The whole thing takes about 30 seconds.
The sealed, signed PDF together with its audit trail: when the document was sent and to which number, when it was opened, when it was signed, from which IP and device — separately for each borrower. A combination that is very hard to argue with.
Yes. Sign&Pay (Business plan and above) lets the client sign the agreement and pay on the same screen, in the same flow. A signature plus a deposit locks in commitment in a way a signature alone never does.
Sign up free, upload your existing agreement (PDF or Word), let the AI place the fields for both borrowers, and send to WhatsApp. No credit card needed; your first 3 documents are free, plus an automatic 14-day Business trial. Start at okdoc.
A signed fee agreement is the difference between a fee in your account and free consulting, and a signed borrower authorization is the difference between running the process and waiting for the client to relay information. Both documents need to be signed before the work starts — and by both borrowers.
The reliable way to make that happen on every file is to build signing into the flow itself: discovery call, then two WhatsApp links within five minutes — one per borrower. The AI places the fields, reminders do the chasing, the template link in your bio signs hot leads on its own, and every sealed document waits in the archive with full evidence for the day you need it.
Start free: 3 documents at no cost plus a full 14-day Business trial, no credit card required. Try okdoc — and open your next file with a signed agreement, not a promise.