The dead zone for small landlords
If you own one to four rental units, you're in a dead zone. Property management software starts around $50 a month with unit minimums and is built for people managing hundreds of doors. The spreadsheet is free, but it only knows what you typed into it, and you stopped typing things into it in March.
So most small landlords run the business out of a checking account and their memory. Did the duplex tenant pay? Probably. How much did the water heater end up costing after the second visit? No idea. What did Unit B net this year? Ask again in April, in a panic.
There's a third option now. Connect the bank account where rent lands to an AI agent, and ask it these questions in plain English. The data is already sitting in your transaction history. You just haven't had a good way to query it.
What you need
BankBridge is a hosted MCP server. You connect your bank once, and any MCP-capable agent (Claude, ChatGPT, Cursor, Gemini, and about two dozen others) gets read-only access to your live account data. It costs $5 a month per connected bank, cancel anytime.
For landlord work, four of the eleven tools do most of the lifting: search_transactions finds deposits and expenses by keyword, list_transactions pulls date ranges, get_monthly_cashflow shows money in versus money out, and get_merchant_history tracks what you've paid a specific vendor over time.
Nothing is stored on BankBridge servers. Every question triggers a live fetch from your bank, so the answer reflects your account as of right now, not as of last night's sync.
Split income and expenses by property
Property management software separates properties with dedicated ledgers. You can get the same split from one checking account, because your transactions already carry the clues: tenant names on incoming transfers, vendor names and locations on expenses. Start by telling your agent the map once:
I own two rentals. The Maple St duplex has tenants Rivera ($1,650/mo) and Chen ($1,400/mo). The Oak Ave house has the Okafors ($2,100/mo). Maple St repairs usually come from Alvarez Plumbing or the Home Depot on Custer Rd. Oak Ave has an HOA that debits $85 monthly.
From then on, splitting is a one-line request:
Group this year's rent deposits by property and month, and flag any month where a tenant paid short or late.
If your agent supports project files or memory, save the property map there so you never have to repeat it. In Claude Code that's a note in CLAUDE.md; in Claude Desktop, a project instruction.
Catch a missing rent payment in days
This is the part that pays for itself. In a spreadsheet workflow, a missing rent payment surfaces whenever you next open the spreadsheet, which might be week three. With live data, you ask on the 5th:
It's the 5th. Which of my tenants haven't paid rent yet this month?
The agent searches deposits since the 1st for each tenant's name and expected amount, then tells you Rivera and the Okafors are in but Chen isn't. Now you can send a friendly reminder on day five instead of an awkward one on day nineteen. On most leases, that's the difference between catching it inside the grace period and eating a month of drift.
You can also make it a standing check. Some agent setups support scheduled runs; ask yours to check on the 5th of every month and only message you if someone's missing.
Total repairs by property for taxes
Come tax time, Schedule E wants income and expenses per property, and repairs are the line small landlords mangle most. They're scattered across hardware stores, plumbers, and that one contractor you paid by transfer in July.
Total my repair and maintenance spending for the year, split by property. Check Home Depot, Lowe's, Alvarez Plumbing, and anything that looks like a contractor payment. List whatever you couldn't assign so I can place it.
That last sentence matters. The agent will confidently place most charges from descriptors and your property map. The remainder comes back as a short list you resolve in two minutes, instead of you doing all of it by hand.
Do this quarterly rather than in April and the unassigned list stays tiny, because you still remember what that $340 charge was.
The 15-minute monthly review
Here's the whole review as one reusable prompt. Run it on the 5th of each month:
Run my landlord month-end: 1) confirm every tenant's rent landed, with dates and amounts, 2) list all expenses you can tie to a property, 3) show net cashflow per property and overall, 4) flag anything unusual, like a vendor charging more than their history.
The first run takes a few minutes of back-and-forth while the agent learns your properties. After that it's genuinely about 15 minutes a month, most of it spent reading.
If you want the output somewhere permanent, ask for a table and paste it into your spreadsheet. The spreadsheet becomes the archive instead of the data-entry chore.
What this won't do
A few honest limits. Cash rent is invisible; if a tenant pays in paper, this approach fails for that unit until the money hits a bank. Security deposits look like rent deposits, so tell your agent about them up front or they'll pollute your income numbers.
It's read-only by design. The agent can't move money, send a late notice, or pay a contractor. It answers questions; you take the actions. For most small landlords, that's the right split.
And if you've grown past a handful of units, with staff, work orders, and tenant portals, buy the property management software. It earns its price at that scale. Below it, your bank account plus an agent that can read it covers the money questions for $5 a month.