My Homebuyer Deal Room & Property Workspace
Compare actual homes from Zillow, Redfin, or open house tours side-by-side. Input your financial baseline to test affordability stress, carrying costs, and down payment gaps instantly.
Reviewed by Sarah Jenkins, CFP®, Chief Underwriting & Mortgage Analyst — Last updated
Disclaimer: This workspace is a modeling sandbox. Calculations represent fixed-rate 30-year conventional mortgage structures. Property tax rates, hazard insurance, and PMI rates are estimates based on standard residential finance benchmarks. This does not constitute legal representation, a formal loan pre-approval, or official advisory service. All calculations run locally in your browser memory.
1. My Financial Profile
2. Active Properties List
Property Side-by-Side Analysis
| Key Comparison Metrics | Prop 1 | Prop 2 | Prop 3 |
|---|---|---|---|
| Home Listing Price | - | - | - |
| Monthly Principal & Interest | - | - | - |
| Taxes, Insurance, HOA & PMI | - | - | - |
| Total Carrying Cost / Month | - | - | - |
| Back-End DTI % | - | - | - |
| Cash Reserves Left After Close | - | - | - |
| Affordability Status | - | - | - |
How to Audit & Select the Right Home Purchase Deal
When touring multiple properties, the listing price is only one component of monthly cash outflows. High HOA fees, localized property taxes, and private mortgage insurance (PMI) thresholds can turn a cheaper home into a more expensive monthly carrying obligation than a larger, more expensive home.
Use this workspace to calculate your Debt-to-Income (DTI) boundaries. Underwriting guidelines set by Fannie Mae require that total household liabilities do not exceed 43% of your gross monthly earnings. Exceeding these metrics may limit your financing access or force you to target cheaper listing brackets.
Down Payment vs. Reserves: A common buyer error is spending all available cash on the down payment. Lenders demand to see cash reserves (post-closing liquid funds) to verify you can handle emergency maintenance or carry the loan if your earnings are disrupted.
Deal Room Frequently Asked Questions
What is a Homebuyer Deal Room?
A Homebuyer Deal Room is a personalized, interactive workspace where you can compare multiple properties side-by-side against your unique financial profile. Unlike single-property calculators, it evaluates how different houses impact your monthly carrying costs, debt-to-income (DTI) thresholds, and cash-to-close requirements at the same time.
What is the Front-End vs. Back-End DTI ratio?
The Front-End DTI (Housing Ratio) is the percentage of your gross monthly income that goes toward housing costs (P&I, taxes, insurance, HOA, and PMI). Underwriters typically prefer this to be 28% to 31% or lower. The Back-End DTI (Total Debt Ratio) includes housing costs plus recurring monthly obligations (like car loans, credit cards, and student loans). Lenders prefer this to be 36% to 43% or lower.
How is the cash needed to close estimated?
Cash needed to close includes your down payment amount plus estimated settlement and closing fees. For conventional loans, closing costs typically range between 2% and 3% of the total loan size. This workspace models closing costs at a standard 2.5% of the loan amount to ensure you do not experience funding shortfalls.
Can I share my Deal Room workspace with others?
Yes. The Deal Room utilizes client-side URL state serialization. When you click 'Copy Share Link', the tool compresses your profile and properties list into a single encoded string in the URL. Anyone loading that link will see your exact workspace setup instantly. No registrations, databases, or accounts are required.
How do monthly HOA fees affect my mortgage borrowing capacity?
Homeowners Association (HOA) fees count dollar-for-dollar toward your front-end and back-end debt-to-income ratios. Because HOA fees are a mandatory housing obligation, a high HOA fee directly reduces the maximum principal and interest payment you can qualify for, thereby reducing your maximum home purchase price.
Will my property taxes change after buying the home?
Yes. Many local tax assessors re-evaluate a property's assessed value upon sale, matching the purchase price. If the home was owned by the previous occupant for a long time under assessment-capping laws, your post-purchase property tax rate may increase significantly from the historical MLS listing value.
What are liquid cash reserves, and why do mortgage underwriters require them?
Liquid cash reserves are funds that remain in your checking, savings, or brokerage accounts after paying your down payment and closing costs. Underwriters often require 2 to 6 months of housing payments as reserves to guarantee you can carry the mortgage in the event of job loss or emergency home repairs.
How does my down payment percentage affect private mortgage insurance (PMI)?
Conventional loans require private mortgage insurance (PMI) if your down payment is less than 20% (an LTV ratio above 80%). The monthly cost of PMI depends on your credit score and the loan-to-value ratio. As your down payment percentage increases (e.g., from 3% to 10% or 15%), the PMI premium rate drops significantly before disappearing entirely at 20% down.
Can I shop for my own closing services and title insurance?
Yes. Section C of your Loan Estimate lists closing services you can shop for, which typically include title search services, title insurance binder fees, and settlement agents. Under federal CFPB regulations, shopping for these third-party title services independently can save you hundreds of dollars compared to the lender's default selection.
How does my credit score affect the interest rate offered by lenders?
Lenders price mortgage rates based on Loan-Level Price Adjustments (LLPAs) set by Fannie Mae and Freddie Mac. Higher credit score brackets (such as 740+) receive the lowest interest rates, whereas lower score tiers face rate premiums or extra points to offset default risk, which increases your monthly payment and DTI stress.