First Principles Partners

For All Aspects of Homeownership

Use our market search engine to compare available and recently sold listings, get matched with a partner agent, or browse our free proprietary calculators to start blueprinting your next steps.

Market Search Engine
Tools for Buyers

Asset Acquisition

Affordability Calculator

Stress-test your income against current rates and debts to determine your true purchasing power.

Cost of Living Analysis

Determine your household burn rate and translate your liquid cash reserves into a precise timeline of stability.

Debt to Income Calculator

Evaluate your back-end and front-end ratios exactly the way an institutional underwriter would.

Home Purchase Cost Estimator

Estimate total cash-to-close, including closing costs, escrow requirements, and down payment scenarios.

Buy vs Build Calculator

Compare the financial realities of acquiring an existing asset versus funding custom new construction.

HOA Value Calculator

Audit homeowners association fees against included amenities, deferred maintenance, and insurance coverages.

Fixer-Upper vs Turnkey

Evaluate the upfront capital expenditure of a fixer-upper versus the embedded premium of a turnkey property.

Commute ROI Calculator

Quantify the hidden costs of your daily commute, factoring in fuel, vehicle wear-and-tear, and the true monetary value of your time.

Moving Truck Calculator

Estimate the logistics of your move by calculating volumetric requirements and optimal transportation strategy for relocating your household assets.

CapEx Decay Modeler

Forecast the depreciation timeline of major home systems (roof, HVAC, etc.) to accurately project future capital expenditures.

Tools for Financing

Debt Optimization

Mortgage Comparison Tool

Audit multiple loan scenarios side-by-side to find the optimal financing strategy and minimize total interest.

Mortgage Payment Calculator

Model exact monthly obligations by factoring in principal, interest, taxes, and insurance (PITI) under current rate conditions.

Refinancing Tool

Calculate the break-even point and long-term net savings of restructuring your current debt at a lower interest rate.

Home Equity Loan Calculator

Determine the precise borrowing power of your captured appreciation and model repayment schedules for secondary leverage.

Mortgage Sensitivity Tool

Stress-test your portfolio by visualizing how micro-fluctuations in interest rates will impact your total lifetime cost of capital.

Tools for Sellers

Asset Disposition

Seller Net Calculator

Determine your exact cash-out figure by modeling agent commissions, prorated taxes, title fees, and existing mortgage payoffs.

Pre-Sale Renovation ROI

Quantify the expected return on aesthetic and structural upgrades to ensure every dollar spent directly increases final proceeds.

Sell vs Rent Out Modeler

Compare the immediate liquidity of a sale against the long-term wealth generation and tax implications of holding the asset as a rental.

Tools for Renters

Capital Retention

Rent vs Buy Calculator

Compare the long-term wealth impact of buying a property versus renting and investing the difference.

Renter Savings Optimization Tool

Engineer a dedicated down payment timeline by stress-testing your current operational liquidity.

Lease Break ROI Calculator

Quantify the financial impact of terminating your lease early by modeling penalty fees against the equity gained from an immediate home purchase.

Tools for Homeowners

Asset Management

Infrastructure Risk Audit

Audit your home's critical infrastructure to mitigate the financial risk of sudden failures and protect your cash flow with a strategic home warranty.

CapEx Planning Tool

Track the depreciation schedule of major household systems to proactively forecast maintenance and capital expenditure requirements.

DIY vs Contractor Model

Compare the real cost of sweat equity and personal time against the premium of hiring professional, licensed tradesmen.

Mortgage Prepayment vs Investment Modeler

Mathematically determine whether to aggressively pay down your principal balance or redirect that capital into higher-yield market vehicles.

PMI Eradication Tracker

Monitor your amortization schedule and organic market appreciation to target the exact month you can eliminate private mortgage insurance.

Homeowner Tax Benefit Analyzer

Maximize your annual write-offs by analyzing mortgage interest deductions, among other federally applied deductions.

Solar Calculator

Evaluate solar generation and battery arbitrage yields using transparent first-principles math and rooftop satellite insights.

Interactive Planning Tools

Digital Checklists, Timelines, and Budget Trackers

Comprehensive Relocation Schedule

Customize your week-by-week action plan to manage your transition.

Closing Guide for Buyers

A step-by-step checklist to prepare you for a smooth closing day.

Home Comparison Tool

Keep your notes in one place as you view properties.

Home Inspection Guide

Evaluate property conditions and forecast estimated repair costs over time.

Loan Preparation Checklist

Gather your documents to prepare for your mortgage application.

Post-Closing Guide

Prepare to settle into your new home smoothly and securely.

Relocation Budget Tracker

Plan, estimate, and track your total expenses throughout the transition.

Seller Checklist

A comprehensive guide to preparing, listing, and closing on your home.