Days to Close: The Line Missing From Most Boston Flip Pro Formas

Almost every flip pro forma we see from a Boston investor has a line for acquisition, a line for rehab, a line for carrying costs, and a line for the exit. Almost none of them have a line for financing speed.

That is strange, because financing speed quietly rewrites every other number on the sheet. A deal that closes in two weeks and a deal that closes in seven weeks are not the same deal. They have different holding costs, different competitive positions, different contractor availability, and in a market with as little inventory as Greater Boston, different odds of existing at all.

This post is about that gap. Why days to close deserves its own line in your model, how to estimate it honestly, and what to have in hand before you apply so the number comes down.

Holding cost is a rate multiplied by a duration, and most investors only negotiate the rate

Investors spend enormous energy comparing interest rates and origination points across lenders. That energy is well spent. But rate is one of two terms in the holding cost equation, and it is the term you have the least leverage over. Duration is the other term, and duration is largely determined by things you control.

Look at the shape of the problem. Your carrying costs during a flip include debt service, property taxes, insurance, utilities, and whatever you spend securing and maintaining a vacant property. Those costs accrue per day. They start the day you close and they stop the day you sell. Anything that adds days to the front of that window adds cost without adding value, because you cannot start demolition on a property you do not own.

Run the arithmetic on your own last project. Add up everything that accrues daily, divide by the number of days you held it, and you have your daily carry. Now ask how many days your financing added at the front end. Multiply. That is a real number, it came out of your margin, and it almost certainly never appeared as a line item anywhere.

A financing delay is worse than a rehab delay

Investors tend to treat all delays as equivalent. They are not.

A rehab delay is expensive, but at least work is happening. Materials are arriving, permits are moving, value is being added to the asset even if slower than planned. A financing delay is pure carry with zero progress. Nothing about the property improves while you wait for a file to clear underwriting.

Worse, in a competitive market a financing delay often is not a delay at all. It is a lost deal. And the cost of a lost deal is not measured in days of carry. It is the entire spread you were going to earn, plus whatever you spent on inspection and diligence getting to the point where you lost it.

This is why speed compounds in a way that rate does not. A slightly better rate improves one deal by a modest amount. A reliably short close changes which deals you win, and winning deals is upstream of every other number in your business.

Why Boston sharpens this

Two features of this market amplify the cost of slow financing.

Inventory scarcity. When few properties pencil, the ones that do attract multiple offers, and sellers start optimizing for certainty of close rather than headline price. An investor who can credibly promise a short, clean timeline is bidding with an advantage that never shows up in the offer number. An investor who needs a long financing contingency is effectively bidding at a discount to their own offer, whether or not they realize it.

Sellers are not being sentimental when they take the faster offer. They are pricing risk. Every week of contingency is a week they carry the property and a week the deal can fall apart. If you can shorten that window, you are handing them something valuable, and you should expect to be paid for it in negotiating position.

A firm rental floor. Our current sitewide Boston one bedroom figure sits at $2,850, essentially flat year over year within our margin of error. We publish the underlying spread and step up datasets openly at homzorarealty.com/data if you want to work with the raw numbers rather than take ours.

That floor matters for flippers, not just landlords, and the reason is risk rather than income. A stable rental market means a flip that does not sell on schedule has an exit that is not a fire sale. You can lease it, refinance into longer term debt, and wait for a better selling window instead of cutting price into a soft month. Investors who have that fallback underwrite differently and bid differently from investors who do not.

It also means the BRRRR strategy stays viable in neighborhoods where the flip spread has compressed, which changes which properties are worth chasing in the first place. A property that fails as a flip at current spreads may still work as a rent and refinance, and knowing that before you bid is worth more than shaving a quarter point off your rate.

Estimating your real days to close

Most investors quote themselves a financing timeline based on the best case they have personally experienced. That is the wrong anchor. Use your median, not your best, and build the estimate from components rather than guessing at a total.

Pre application readiness. This is the stretch most investors do not count, because it happens before the clock feels like it has started. If your entity documents, bank statements, track record summary, and contractor scope are not already assembled, you are adding days here no matter how fast your lender moves. This is also the only component that is entirely within your control.

Underwriting and valuation. Every business purpose lender needs to form a view of the property’s current condition and its value after repair. How that view gets formed varies significantly between lenders and property types. Ask directly rather than assuming, because this component has the widest variance of the four.

Title and closing coordination. In Massachusetts this stretch has its own local character. Registry practices, municipal certificates, and attorney availability all sit on the critical path, and none of them move faster because you are in a hurry. Build in the days rather than hoping.

Draw scheduling. Not part of the initial close, but part of the same discipline and worth estimating at the same time. The pace at which rehab funds are released determines whether your contractor keeps a crew on your site or moves them to someone else’s job. A slow draw cycle can cost you more calendar time than a slow close.

Add those honestly and you have a number you can put in a pro forma. Multiply by your daily carry and you have the real cost of financing speed on this specific deal.

What to have ready before you apply

The most reliable way to shorten the timeline is to remove the back and forth. Assemble all of this before you submit anything.

• Entity documents. Formation certificate, operating agreement, and EIN letter for the entity that will be the borrower. Business purpose lenders lend to entities rather than individuals, and scrambling for these mid underwrite is one of the most common sources of delay we hear about.
• Bank statements. Enough months to demonstrate you can cover the down payment, closing costs, and your share of the rehab reserve.
• Track record summary. A clean one page list of prior projects with addresses, purchase prices, rehab budgets, and exits. If this is your first project, say so plainly and lead with your contractor’s record instead. Vagueness reads worse than inexperience.
• Scope of work with real numbers. Line item, priced, and signed by the contractor who will actually do the work. A vague scope invites questions, and questions cost days.
• Purchase and sale agreement. Executed, with contingency dates clearly visible.
• Insurance quote. Builder’s risk or vacant property coverage, quoted in the borrowing entity’s name rather than yours personally.
• A comp file you built yourself. Do not make a valuation team develop your after repair thesis from scratch. Give them the comps you used and the reasoning behind them. You know the block better than anyone reviewing the file remotely.

Investors who show up with that package close materially faster than investors who assemble it reactively. It is the cheapest speed you will ever buy, and it costs you nothing but an afternoon.

Six questions to ask any lender before you apply

Whoever you end up borrowing from, ask these before submitting rather than after.

• What is your median time from complete application to funding on a project like mine, not your fastest?
• What specifically makes an application complete? Ask for a written checklist.
• How is after repair value determined, and how many days does that step take?
• Who is my point of contact, and what response time do they commit to?
• How are rehab draws requested, inspected, and released, and how long is each cycle?
• What are the three most common reasons a file like mine stalls?

The last one is the useful question. A lender who answers it candidly is telling you exactly how to avoid the delay. A lender who cannot answer it is telling you something too.

The takeaway

Put days to close in your pro forma as its own line, priced at your actual daily carry. Estimate it from components rather than from your best case memory. Then do the work that shortens it, which is mostly assembling your package before you need it rather than after.

In an inventory constrained market, speed is not a luxury. Speed is the offer.

Written by the Homzora Team · Homzora Housing Intelligence, Boston housing research