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Homebuying Guide

The Complete Mortgage Guide: Your Step-by-Step Journey to Homeownership

By Approval AI TeamMay 1, 202515 min read

From pre-approval to keys in hand - navigate the mortgage maze like a pro with our comprehensive 8-step guide that turns the confusing world of home loans into your personal roadmap to success.

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Step 1: Get Pre-Approved

Before you start house hunting, get pre-approved for a mortgage. This involves a lender checking your credit, income, and assets to determine how much they're willing to lend you. It's like getting a financial green light that:

  • Gives you a clear budget for house hunting.
  • Shows real estate agents you're serious.
  • Tells sellers you're backed by a lender.

💡 Insider Tip:

A pre-approval doesn't lock you into one lender. You can, and should, shop around for better rates before you commit. Most lenders won't mention that. Instead, they'll lean on convenience ("We already have your info", "It'll slow things down", or "We've got the best rates"). But comparing offers across lenders could save you thousands.
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Step 2: Get Underwritten Pre-Approval

This is the stronger version of pre-approval. Instead of just checking your credit and income, a lender fully underwrites your loan upfront. They verify everything: employment, income, assets, debt, and credit history. This gives you:

  • Peace of mind that your financing is already done.
  • A significant advantage in competitive markets because sellers know your loan won't fall through.
  • Your financing risk is lower, which makes your offer more attractive.

💡 Insider Tip:

In hot markets, an underwritten pre-approval can help your offer stand out. 86% of home sellers prefer buyers who are fully pre-approved.

⚠️ Important Warning

Many lenders make it feel impossible to shop around. They demand 20+ documents just to talk. They hate being shopped. They ghost, stall, or worse: bait and switch. Some only show you the interest rate, not the full APR. Others sneak in last-minute fees, hoping you're too busy to notice.

Approval AI

We catch those tricks early. If a lender plays games, they're out of our network. We don't mess with shady.

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Step 3: Determine What You Can Actually Afford

Here's a harsh truth: your lender's "maximum approval amount" doesn't mean that's what you should borrow. Lenders qualify you based on gross income (before taxes), but you pay your mortgage with net income (after taxes).

But here's the key: your pre-approval is a ceiling, not a target. Just because a lender says you can borrow $1.2M doesn't mean you should.

💡 Insider Tip:

Property taxes, insurance, and HOA fees can sneak up and blow up your monthly payment or even disqualify your loan even if the home price seems "in budget." Lenders qualify you based on your DTI (monthly debt-to-income).

Approval AI

Your Debt-to-Income ratio determines how much you can actually borrow. Lenders typically cap this around 43% of your gross income. Approval AI calculates your DTI in real time, so you don't get blindsided later.

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Step 4: Find a Home and Make an Offer

Now for the fun part: house hunting! Once you find a home you love, it's time to make an offer. This is where your real estate agent will guide you through this part, but your pre-approval letter plays a starring role.

You'll also decide if your offer includes contingencies like financing or appraisal, that give you a way out if something goes sideways.

Your agent submits an offer, ideally with a strong pre-approval or underwritten letter. Once your offer is accepted, you're officially under contract!

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Step 5: Shop for the Best Mortgage

Now that your full mortgage packet is ready, it's time to request real quotes from multiple lenders.

🛡️ Will Shopping Around Hurt My Credit? Nope. Despite what some lenders might say, FICO counts multiple mortgage inquiries made within a 45-day window as a single hit to your credit score. So get those quotes.

💡 Insider Tip:

Rates change daily. To compare accurately, get all quotes on the same day, so you're comparing apples to apples. Spreading it over days = useless comparisons.

⚠️ Warning Tip:

Watch out for bait-and-switch moves:

  • Lenders who ghost after quoting
  • Rate hikes after you commit
  • Surprise fees buried in fine print

Approval AI

Your AI assistant sends your info to top lenders simultaneously, gathers real-time offers, and flags the best combo of rate, cost, and speed. If lenders pull any bait and switch moves, your AI assistant will flag these in real time. If they cross the line, they're out.

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Step 6: Underwriting

Underwriting is when your lender takes a magnifying glass to your financial life. They're basically the financial detective who double-checks everything to make sure you're good for the money. This is basically their way of asking: "Are you really who you say you are, and can you actually repay this loan?"

During underwriting, lenders will:

  • 📌 Verify your income, employment, credit, and assets
  • 📌 Review your property appraisal to make sure the home is worth what you're paying
  • 📌 Confirm your debt-to-income ratio (DTI) still meets their guidelines
  • 📌 May ask for updated bank statements, letters of explanation, or even clarification on Venmo activity. It's not personal. It's just how the system works.

💡 Insider Tip:

Underwriting is where deals get delayed or derailed. Don't open new credit cards, buy a car, or switch jobs, as they can blow things up. Stay steady and boring.

Approval AI

Monitors your loan file and sends real-time alerts when lenders need something, so you're never caught off guard.

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Step 7: Closing Day

You'll get a Closing Disclosure (CD) at least 3 business days before signing. It outlines your final interest rate, monthly payment, closing costs, and the total amount due at signing. Closing day is when you:

  • Sign the final documents
  • Pay your closing costs
  • Get the keys to your new home

💡 Insider Tip:

Review your CD carefully. This is your last chance to flag mismatches or surprise fees. If something looks off, ask.

Approval AI

We review your Closing Disclosure to make sure everything matches the quote you accepted. No surprise fees, no last-minute changes. If something's off, we'll flag it before you ever pick up a pen.

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Step 8: Celebrate

You did it. You've officially made it through the mortgage maze and into your new home. 🥳

Buying a home is one of the biggest financial decisions of your life, but it doesn't have to be overwhelming. With the right tools (and a little help from AI), Approval AI helps you focus on what really matters: finding the place you'll call home. 🏡

Ready to start your home journey?

Get pre-approved and start shopping for your best mortgage rates today.

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