Most agents who try AI hit the same reef: it writes “family-friendly” or “only $2,400 a month” and the agent posts it.
Both of those can get you in trouble. This guide is your chart around them. You do not need to be a tech person. If you can copy and paste, you can do everything here.
Your route
- 0Before You Leave the DockSet up Claude in 10 minutes
- 1Know the WaterWhat AI can and can’t do
- 2File a Float PlanHow to ask so it gets it right
- 3Load the FactsThe Property Fact Sheet
- 4The Two ReefsFair Housing and financing
- 5Check Before You PostThe 3-step check
- 6The Tackle BoxCopy-and-paste prompts
- 7Your First WeekOne small win a day
Set up Claude in 10 minutes
What is Claude?
Claude is an AI assistant made by a company called Anthropic. It works a lot like ChatGPT. You type a request in plain words, and it writes back. It can draft a listing description, a social post, a follow-up text, or a weekly update for your seller. There is a free version, so you can try everything in this guide at no cost.
Get set up
- 1Make an account. Go to claude.ai and sign up with your email. The free plan is fine to start.
- 2Create a Project. Look in the left menu for Projects and start a new one. Name it something like “My Listings.” A Project is a folder that remembers your rules, so you don’t have to repeat them in every chat.
- 3Add your 3 starter files. Copy the three templates below. In your Project, find the place for instructions or files and paste them in. Fill in the parts in (parentheses) with your own details.
- 4Start a chat inside the Project. Now every request you make will follow your rules automatically.
Your 3 starter files
Think of these as the paperwork you keep on board. You write them once and Claude reads them every time.
About My Business
Tells Claude who you are, so it never has to guess.
ABOUT MY BUSINESS My name: (your name) My brokerage: (brokerage name) Where I sell: (your towns or counties) What I mostly sell: (example: waterfront homes, condos, vacant land) Disclosures my broker requires on every ad: (paste them exactly) How I like to be contacted: (phone, email)
My Writing Voice
So the drafts sound like you, not like every other agent.
MY WRITING VOICE Here are two things I wrote that sound like me: 1. (paste a listing description or post you liked) 2. (paste another one) Words and phrases I never use: (example: "nestled," "boasts," "dream home") How long I like my posts: (example: short, 3 to 5 sentences)
No-Go Rules
The list of things Claude is never allowed to write. It is the reason you can trust a draft. You’ll build it in Leg 4, and it takes about 2 minutes because the rules are already written for you.
Words you’ll see in this guide
- Prompt
- The request you type to Claude. “Write a listing description for 123 Main St” is a prompt.
- Chat
- One conversation with Claude. Start a new chat for each new job.
- Project
- A folder in Claude that holds your starter files, so every chat inside it follows your rules.
- No-Go Rules
- Your list of things Claude must never write. The guide gives you the wording.
- Property Fact Sheet
- A short list of verified facts about one listing, each with where it came from.
- Draft
- What Claude writes. It is never final until you have checked it.
Claude writes. You’re still the captain.
It only knows what you tell it
Claude can’t see the MLS or county records. If you didn’t give it a fact, anything it writes about that fact is a guess.
It sounds sure, even when it’s wrong
A confident sentence is not a true one. Check flood zone, year built, and dock details against the paperwork every time.
The license is yours
If an ad breaks a rule, “the AI wrote it” is not a defense. You read it, you post it, you own it.
| Good jobs for Claude | Jobs to keep for yourself |
|---|---|
| First drafts of listing descriptions from your facts | Setting a price |
| Turning one post into a Facebook, Instagram, and email version | The final yes on anything that gets posted |
| Pulling the dates out of a contract you paste in | Deciding what a contract or HOA rule means |
| Drafting a follow-up text after a showing | Any payment, rate, or down payment number |
| A weekly update for your seller | Hitting send |
Five lines before you ask
Here’s why. A vague request makes Claude fill in the blanks itself, and that’s where the made-up details come from.
This is what most people type
Write a great description for my waterfront listing.
Claude has no idea about the dock, the flood zone, the bridges, or your style, so it invents them. Then you spend twenty minutes fixing it.
The Float Plan: fill in these five lines instead
What you want and who will read it.
Paste your Property Fact Sheet.
“Follow my No-Go Rules.”
Length and style.
Ask it to list where each fact came from.
1. WHAT I NEED: A listing description for 123 Example Lane that buyers will read on their phone. 2. USE ONLY THESE FACTS: (paste your Property Fact Sheet here) 3. NEVER DO THIS: Follow my No-Go Rules. Don't add anything that isn't in the facts. 4. HOW IT SHOULD LOOK: About 150 words, in my writing voice. 5. SHOW YOUR WORK: At the end, list each fact you used and where it came from.
The Property Fact Sheet
On the water, the details that sell a home are the same details that can blow up a closing. A buyer who was told “not in a flood zone” and then gets a flood insurance quote is not a happy buyer. Fill this out once per listing.
PROPERTY FACT SHEET Address: Where these facts came from: (MLS sheet, survey, seller disclosure, elevation certificate, with dates) Bedrooms / baths / square feet: Year built and big updates: (roof year, windows, impact glass) Flood zone: (the zone letter and where you got it) Elevation certificate available? (yes or no) Wind mitigation report available? (yes or no) Waterfront details: (canal or open water, seawall, dock, and where you got it) Condo or HOA rules: (rentals allowed? pets? where you got it) NOT CONFIRMED YET: (anything you're unsure about goes here)
Six claims that sink coastal listings
If you can’t point to a document that proves it, leave it out.
| Don’t write | Why it’s risky | Write this instead |
|---|---|---|
| “Not in a flood zone” | Every property is in some flood zone, and lenders check the current map. | “Flood zone X per the current FEMA map.” |
| “Low insurance” | Every buyer’s quote is different. | Leave it out. Buyers get their own quotes. |
| “Deep water” | Depth changes with the tide, and buyers buy boats based on it. | “Buyer to verify water depth.” |
| “No fixed bridges” | One wrong bridge ruins a sailboat owner’s plan. | “Buyer to verify route to open water.” |
| “Great rental income” | Rental rules change by town and HOA. | The written rental rule, and where it came from. |
| “Hurricane proof” | Nothing is. | “Impact windows, 2021 roof.” (the real features) |
“Deep water sailboat paradise, no bridges, low insurance, perfect for your family!”
Four claims nobody can prove, plus a Fair Housing problem.“Canal-front home with a 60-foot concrete seawall (2019 permit). Flood zone AE per the current FEMA map, elevation certificate available. Buyer to verify water depth and route to open water.”
Every fact can be checked.Build your No-Go Rules
Reef A: Fair Housing
The short version: describe the home, never the people who should live there.
AI loves phrases like “perfect for a growing family” or “great for retirees.” They sound friendly, but they can suggest you prefer some buyers over others, and that’s a Fair Housing problem.
Phrases that should stop you:
NO-GO RULES: FAIR HOUSING Describe the property, never the people who should live there. Never mention or hint at race, color, religion, sex, national origin, family status, disability, or any other protected group. Never say who a home is "perfect for," who would "fit in," or what the neighbors are like. Never describe schools, neighborhoods, or safety. Point to official sources instead. Only use facts I can prove: size, layout, condition, flood zone, dock, and distances in miles to named places. If you're not sure about a phrase, flag it for me. Don't quietly change it.
Reef B: Money numbers in your ads
The short version: don’t put payments, down payments, or interest rates in your posts. Say “financing available” and send the money questions to your lender.
This is the reef almost nobody warns agents about. When an ad mentions a payment like “$2,400 a month” or a down payment like “just 3.5% down,” federal mortgage advertising rules kick in, and they apply to anyone who posts the ad, not just lenders. Once those words are in, the ad has to include a full set of loan details, including the APR (the yearly cost of the loan). Most social posts can’t do that correctly.
And AI will happily write those numbers if you ask for a post that makes a home “feel affordable.”
The four words-and-numbers that trigger the rules
“3.5% down,” “only $25K down”
“30-year fixed,” “15-year loan”
“$2,400 a month,” “less than rent” with a number
“$1,200 in interest your first year”
Also stay away from interest rates (“rates in the 5s!”). A rate on its own isn’t allowed in an ad without the APR next to it.
Safe phrases you can use anytime
- “Financing available”
- “Ask about monthly payment options”
- “VA, FHA, and conventional buyers welcome”
Quick swaps
| Instead of this | Say this |
|---|---|
| “Own it for $2,400 a month!” | “Ask about payment options for this home.” |
| “Just 3.5% down!” | “Financing available. FHA buyers welcome.” |
| “Rates in the 5s!” | Leave it out, or ask your lender for an approved line. |
| “Locked-in fixed rate” (on a buydown) | “Seller is offering a rate buydown. Ask for details.” |
| “Cheaper than renting!” | Cut it. Talk about the home instead. |
NO-GO RULES: MONEY NUMBERS Never write a monthly payment, down payment, loan length, interest rate, or interest cost in anything. If financing should be mentioned, only say: "financing available," "ask about monthly payment options," or "VA, FHA, and conventional buyers welcome." Never use the words "fixed," "guaranteed," "pre-approved," "qualify," or "approved" when talking about financing. Never compare owning to renting with numbers. Never guess at insurance, flood insurance, or taxes. Only state flood zone and insurance facts from documents I give you. If a draft needs a money number, stop and write "ASK MY LENDER" instead of the number.
For the curious: these are the federal Truth in Lending advertising rules (Regulation Z, 12 CFR 1026.24) and the Mortgage Acts and Practices Advertising Rule (Regulation N). This guide is educational, not legal advice. Your broker has the final word on your ads.
The 3-step check
- 1Fact check. Is every fact in the draft on your Property Fact Sheet? If not, cut it.
- 2Fair Housing check. Does it describe the home, not the people?
- 3Money check. Any payments, down payments, or rates? Swap them for safe phrases.
When a buyer asks, “What would my payment be?”
It happens every day. Here’s the simple rule: share the facts you have paperwork for, like HOA dues and the property tax record, and hand the payment question to a licensed lender. Quoting rates or payments to a buyer can start to look like lending without a license.
Here’s a line you can use word for word:
“Great question. I want you to have the real number, with your taxes, insurance, and flood in it, not a guess from a website. Let me connect you with my lender.”
If Claude gets it wrong
| What happened | Why | The fix |
|---|---|---|
| It made up a feature | Your fact sheet had gaps | Fill in the fact sheet. Tell it: “Use only these facts.” |
| It wrote a payment or “3.5% down” | No Money rules, or you asked for “affordable” | Add the No-Go Rules. Ask about features, not affordability. |
| It said “perfect for families” | Your request mentioned a type of buyer | Describe the home, not the buyer. Run the Fair Housing check. |
| It sounds like a robot | No writing voice file | Add two things you wrote to My Writing Voice. |
| The answer is way too long | You didn’t give a length | Say “about 100 words” or “3 sentences.” |
Copy-and-paste prompts
- Click the gold Copy button.
- Open a new chat in your Claude Project.
- Paste it, then replace anything in (parentheses) with your details.
- Press Enter. Read the draft before you use it.
Listing description, facts only
Write a listing description for the home on my Property Fact Sheet. Buyers will read it on their phone. Use only the facts on the sheet. Anything under "Not confirmed yet" can't be written as a fact. List those separately at the end so I can check them. Follow my No-Go Rules. No payments, rates, or down payments. Write it in my voice, about (number) words, and include my broker's required disclosures. At the end, list each fact you used and where it came from. Property Fact Sheet: (paste here)
Fair Housing check
Check the draft below for Fair Housing problems. Look for anything about who the home is for, any protected group, hints about the kind of neighbors, and descriptions of schools or neighborhoods. For each problem, show me: the phrase, why it's risky, and a safer way to say it. Don't rewrite the whole thing. If you're unsure about a phrase, flag it for me. Draft: (paste here)
Money check
Check the draft below for money numbers that could break mortgage advertising rules. Flag any: monthly payment, down payment, loan length, interest rate, interest cost, comparison to rent, or the words "fixed," "guaranteed," "approved," "pre-approved," or "qualify." Also flag any payment that leaves out taxes, insurance, or flood insurance. For each one, show me: the phrase, why it's a problem, and a safe replacement with no numbers. Don't rewrite the whole thing. If you're unsure, flag it for me. Draft: (paste here)
9 more prompts are in the free Tackle Box download:
The Tackle Box
Everything from this guide in one printable PDF, so you can keep it next to you while you work.
- All 12 copy-and-paste prompts
- Your 3 starter files, ready to fill in
- Both No-Go Rules sets (Fair Housing and Money)
- The Property Fact Sheet
- A one-page “check before you post” card
One small win a day
Make your Claude account and your Project.
Fill in About My Business.
Fill in My Writing Voice with two things you wrote.
Build your No-Go Rules. Copy both rule sets, add your broker’s disclosures.
Fill out a Property Fact Sheet for one listing.
Write that listing’s description with the listing prompt.
Run the 3-step check on it. Then post it.
Quick answers
Do I need to be good with technology to use this guide?
No. If you can copy and paste, you can do everything in this guide. Every prompt has a Copy button, and the setup takes about 10 minutes. Claude has a free plan, so you can try it at no cost.
What is a No-Go Rules file?
It is a short list of things Claude is never allowed to write, like phrases about who a home is perfect for, or payment and down payment numbers. You paste it into your Claude Project once, and every draft follows it automatically. The guide gives you the exact wording to copy.
Do mortgage advertising rules really apply to real estate agents?
Yes. The federal Truth in Lending advertising rules apply to anyone who advertises mortgage financing, not only lenders. If your listing or social post says a monthly payment, a down payment, a loan length, or an interest rate, it counts as a mortgage ad, and it has to include a full set of loan details. The simple fix is to say financing available and let your lender handle the numbers.
Can I put a monthly payment in my listing description?
Not safely on your own. A payment number brings in required loan disclosures, including the APR, and they have to be accurate for a real loan program on that date. On coastal property a payment number also usually leaves out flood and wind insurance. Use a phrase like ask about monthly payment options instead.
What should I say when a buyer asks what their payment would be?
Share the facts you have paperwork for, like HOA dues and the property tax record, and connect them with a licensed lender for the payment. Quoting rates or payments to a specific buyer can start to look like lending without a license. A simple line works: I want you to have the real number, with taxes, insurance, and flood in it, so let me connect you with my lender.
The Edge Behind Every Coastal Closing
Your copy is in safe water. Now get your buyers the real number.
When a buyer asks what the payment really is, with flood and wind insurance in it, send them to someone who prices coastal Florida every day.
This guide is educational and is not legal advice. Confirm Fair Housing, advertising, and disclosure requirements with your broker before you publish. Claude is a product of Anthropic; The Mortgage Dock is not affiliated with Anthropic. Features and plans change, so check Claude’s own help pages if a step looks different. Nothing on this page is a commitment to lend or an offer of credit.