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Run the numbers on a rental property

โ€œI'm looking at a rental or investment property and need to know if it makes sense.โ€

AI can build a simple profit-and-loss sheet from listings, rent comps and your costs. It's only as good as your inputs โ€” check every number. Not financial advice.

Fix it yourself in 3 steps

  1. Gather the price, expected rent, taxes, insurance, HOA, repairs and loan terms.
  2. Ask the AI to build a monthly and yearly P&L with cash flow and a few what-if scenarios.
  3. Verify rent and cost assumptions against real local sources before deciding.

Copy this prompt

Build a rental property P&L in a spreadsheet: price [ ], rent [ ], taxes [ ], insurance [ ], HOA [ ], repairs/vacancy [% ], loan [rate, term, down payment]. Show monthly cash flow, yearly totals, and 3 scenarios (rent -10%, repairs +50%, rate +1%). List every assumption you made. Not financial advice โ€” stop after the sheet.

Fill in the [brackets]. Each prompt says when the AI should stop, so it doesn't wander off.

Agents people used for this: Claude, Codex, Hermes Agent, Meta Muse.

Inspired by real examples collected at agentusecases.ai.

๐Ÿ“š 10 real stories of people doing this with AI agents

Collected at AgentUseCases.ai.

Black out account and card numbers before sharing anything. Never give an AI your bank password โ€” export statements instead. AI drafts; you approve and send. Not financial, legal or tax advice.

Tools for this

#1 ยท Our pick

Grok Bot

Best for: Chores that repeat โ€” done for you

The easiest AI helper for everyday people: show it a chore once โ€” a morning brief, checking a bill, watching for a refund โ€” and it keeps doing it while you're away, checking in only when it needs your OK. Works from the Grok app on your phone and computer (beta).

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#2

ChatGPT

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OpenAI's assistant with the broadest feature set: voice, images, search and a large app ecosystem.

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#3

Gemini

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Google's assistant, woven into Gmail, Docs and Android. Strongest if you live in Google's apps.

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#4

Claude

Best for: Writing, analysis, code

Anthropic's assistant: strong writing, analysis and coding, with projects and artifacts for longer work.

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#5

OpenAI Codex

Best for: Delegating tasks as PRs

OpenAI's coding agent, in the CLI and in the cloud. Good at handing off well-scoped tasks that come back as pull requests.

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#6

Hermes Agent

Best for: An open agent that learns your routines

Nous Research's open-source agent that remembers what it learns and can run on your own machine or server, with any model you choose.

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#7

Grok

Best for: Real-time info, everywhere you go

xAI's assistant with real-time X data โ€” on iPhone, Android, desktop, the web, X, and built into Tesla cars. Want it to do chores on its own? See Grok Bot.

Visit Grok โ†—