realestate-mortgage

Calculate mortgage payments, affordability, and rent-versus-buy outcomes across loan types.

Updated May 26, 2026
One-click install
npx skills add https://github.com/tan2line/ai-realestate-cowork-plugin --skill realestate-mortgage-tan2line
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: realestate-mortgage
Source: https://github.com/tan2line/ai-realestate-cowork-plugin/tree/main/skills/realestate-mortgage
Command: npx skills add https://github.com/tan2line/ai-realestate-cowork-plugin --skill realestate-mortgage-tan2line

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

It eliminates uncertainty about monthly mortgage costs and affordability by calculating payments, taxes/insurance/PMI, and refinance break-even from the inputs you provide.

Core Features & Use Cases

  • Mortgage payment & amortization modeling: Computes monthly P&I, then adds PITI components (taxes, insurance, PMI/HOA/flood) and highlights equity/interest milestones over time.
  • Loan scenario comparison: Produces side-by-side comparisons across common loan types (30-year fixed, 15-year fixed, ARM, FHA, VA, and investor) including cash-to-close and total interest.
  • Affordability and rent vs buy: Uses 28/36 DTI affordability guardrails, estimates max purchase price by DTI, and compares renting vs buying using a break-even and 5-year wealth framing.

Quick Start

Request mortgage analysis with: /realestate mortgage 450000 income 120000 down 20% credit 740 Austin TX

Frequently Asked Questions about realestate-mortgage

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I calculate my mortgage payment including property taxes and PMI?

To calculate your mortgage payment including property taxes and PMI, input the property price, down payment, and loan type. The tool computes amortized monthly P&I, then adds PITI components like taxes, insurance, PMI, and HOA fees for a total payment.

How much house can I afford based on my DTI ratio?

You can find how much house you can afford by applying 28/36 DTI affordability guardrails. Input your income and debts to estimate the maximum purchase price that fits within standard debt-to-income ratio screening limits.

What is the break-even point for refinancing my mortgage?

The refinance break-even point is calculated by comparing your current mortgage rate against the new rate. Input your remaining loan balance and new rate assumptions to determine when monthly savings offset closing costs.

How do I compare 30-year fixed, FHA, and ARM loan scenarios?

Comparing 30-year fixed, FHA, and ARM loan scenarios produces side-by-side tables showing monthly payments, cash-to-close, and total interest. Input a property price to evaluate multiple loan types simultaneously.

When is renting vs buying a house the better financial choice?

Renting vs buying is evaluated using a break-even and 5-year wealth framing. Input your target property price and local costs to compare the long-term financial outcomes of renting against purchasing.

Does mortgage affordability screening work with location-specific property taxes?

Yes, affordability screening works with location-specific property taxes. Applying location-based cost assumptions allows the calculator to accurately estimate PITI components and DTI-based maximum purchase prices for specific areas.