You found the home, your offer was accepted, and the celebration was real. Then, weeks later, the whole thing quietly collapsed. It happens more often than most buyers and sellers realize, and the reasons are rarely what people expect. Across the country, a meaningful share of signed contracts never make it to the closing table. Understanding why transactions fall through, and what an experienced agent does to prevent it, is one of the most valuable things you can learn before you ever sign.
At Century 21 Seago in Tempe, we have spent decades watching transactions succeed and, occasionally, watching avoidable problems unravel them. Here are the issues we see most often, and why staying in close contact with your agent at every stage matters more than ever.
Understanding Fall-Through and Attrition Rates
In real estate, "fall-through" refers to a transaction that was under contract but failed to close. The broader "attrition rate" describes how many transactions slip away during the escrow period for any reason. These aren't rare flukes. Financing problems, inspection surprises, appraisal gaps, and cold feet all contribute, and any one of them can end a sale that looked rock-solid on paper.
The encouraging news is that most fall-throughs are preventable. The transactions that collapse usually share a common thread: somewhere along the way, communication broke down, a deadline slipped, or a buyer made a decision without their agent in the loop. The transactions that close smoothly are the ones where the agent stayed involved from offer to keys.
Insurance Problems Can Stop a Closing Cold
One of the fastest-growing reasons transactions fall apart is homeowner's insurance, and this is where lessons from markets like California are spilling into the rest of the country. In high-risk areas, insurers have pulled back, raised premiums dramatically, or declined to write new policies at all. Buyers who assumed coverage was a simple formality have been blindsided when they couldn't secure an affordable policy, and a lender will not fund a loan on an uninsurable home.
Why You Should Shop for Insurance Early
While Arizona is not California, the broader insurance market is tightening everywhere. Premiums are rising, underwriting is stricter, and a property's claims history or location can complicate coverage. This is exactly why your agent will push you to start the insurance conversation early. Waiting until the final week of escrow to shop for a policy is one of the most dangerous mistakes a buyer can make.
The PMI Surprise That Throws Off the Numbers
Private mortgage insurance, or PMI, is another common transaction-killer, usually because buyers don't see it coming. When a buyer puts down less than 20 percent, lenders typically require PMI to protect themselves. That added monthly cost can push a buyer's payment beyond what they qualify for, or beyond what they're comfortable paying.
PMI throws off the entire affordability calculation. A monthly payment that looked manageable can suddenly include hundreds of extra dollars, changing the debt-to-income ratio the lender relies on. We've seen buyers fall in love with a home, only to discover that PMI tips them out of approval range. An agent who understands financing will flag this early so you're shopping in a realistic price range from the start, rather than discovering the problem after your offer is accepted.
AI Advice Is Creating a New Kind of Disruption
Here is a newer challenge we're seeing more and more: buyers and sellers using AI tools and online estimates, then acting as their own experts. AI can be a wonderful starting point for research, but it does not know your local market, your contract deadlines, or the dozens of human factors that move a transaction forward.
We've watched well-meaning clients lean on a chatbot or an automated home value tool and make confident decisions that were simply wrong for their situation. They misjudge an offer, misread a contingency, or assume an online valuation is the final word, and the transaction suffers.
The disruption isn't the technology itself — it's the false confidence it creates.
Real estate is full of nuance that a general-purpose algorithm cannot account for, especially in a market that moves as quickly as Tempe and the greater Phoenix area. The most successful clients use AI to ask better questions, then bring those questions to their agent. That combination is powerful. Replacing your agent with it is where things go sideways.
Why Staying Close to Your Agent Protects Your Transaction
The single thread running through nearly every failed transaction is a breakdown in guidance. Transactions don't usually collapse because of one giant problem. They unravel through a series of small, missed moments: an insurance quote that wasn't requested, a PMI cost that wasn't planned for, an online assumption that wasn't double-checked.
This is why working with your real estate agent at all times, not just at the beginning and end, is so important. Your agent tracks the deadlines, anticipates the obstacles, and steps in before a small issue becomes a transaction-ending one. They've seen these situations before and know how to navigate them calmly.
Work With a Firm That Has Seen It All
Since 1982, Century 21 Seago has guided buyers and sellers through every kind of market and every kind of complication the Valley can produce. If you're preparing to buy or sell in Tempe, Chandler, Ahwatukee, Mesa, Scottsdale, Gilbert, or anywhere across the Greater Phoenix area, talk to Shane Peterlin or Pamm Seago-Peterlin before challenges arise. Staying close to your agent is the surest way to keep your transaction on track from offer to closing.
