Are Longer Hold Times Changing How You Underwrite Flips?

Question

Are you adjusting:
• margins
• rehab budgets
• exit assumptions

compared to prior years?

Marnit Brown · Answer

Take your NOI and divide by annual debt service — that gives the DSCR. Below 1.20 and most lenders won't approve at today's rates.

One thing to check: are you using actual vacancy or the listing's number? Even 2% difference shifts the ratio by 0.05-0.10.

In Florida, insurance is the hidden killer — $3,000-$6,000/year for coastal properties. Make sure that is in your expense model.

Have you stress-tested with rates 0.5% higher?

Richard Golding · Answer

Treating a longer hold time as a minor inconvenience rather than a fundamental threat to your capital is how flippers go broke during a market transition. When a project stretches from a crisp four month turnaround to an eight month grind you are not just paying extra utility bills you are watching your compounding velocity penalty erode your entire position.

The most critical underwriting adjustment required today is decoupling your exit strategy from a single best case appraisal option. As J pointed out in the thread you must stress test every acquisition upfront using a BRRRR conversion framework as your primary backup insurance. If the local submarket rental demand cannot comfortably support a high leverage DSCR refinance that pulls your initial seed capital back out of the deal the asset is a trap. You cannot afford to lock your liquid cash up in a stagnant property just because the retail sales market hits a seasonal lull.

Your rehab budget formatting also needs a complete structural overhaul to absorb these longer timelines. Instead of utilizing a standard five or ten percent blanket contingency you need to build explicit carrying cost multipliers directly into your line items. Sticking to a rigid timeline assumption means a single permit delay or contractor bottleneck will force you to eat extension fees hard money points and elevated builder risk insurance premiums right out of your net profit margin. In this environment the investors who survive are the ones buying at deep structural discounts and underwriting for the worst case timeline before they ever sign the purchase contract.

J Castro · Answer

Absolutely. Longer hold times are forcing investors and lenders to underwrite flips much more conservatively than a few years ago.

We’re seeing adjustments across the board:

• Larger margin requirementsMany investors who were comfortable with thinner spreads during the peak market are now requiring more cushion in the deal to account for slower sales and price reductions.

• Higher rehab contingenciesMaterial costs, labor delays, permit timelines, and contractor availability can all extend projects longer than expected. Rehab budgets today need more room for surprises.

• More conservative ARV assumptionsA lot of operators are no longer underwriting based on “best case” comps. They’re stress-testing exits against softer pricing, longer DOM, and potential seller concessions.

• Carry costs matter moreInterest, taxes, insurance, utilities, and extension fees add up quickly when a project sits 2–4 months longer than projected. That can erase profit fast on marginal deals.

• Exit strategy flexibilityThe strongest flippers today are underwriting multiple exits upfront — resale, rental, or even refinance options if the sales market slows unexpectedly.

The environment now rewards disciplined acquisitions more than aggressive appreciation assumptions. The investors doing best seem to be the ones buying deeper discounts and planning for delays before they happen.

Stacy Raskin · Answer

I'm seeing more investors pivot from selling the property to converting it to a rental after rehab is complete. Depending on the situation, it can be because it's taking to long to sell or the investor isn't getting what he or she wants for the purchase price to make the numbers work. Depending on the local market, currently there may be more rental demand from renters compared to sales demand from home buyers. Instead of using a flip for the investor to recoup the cash invested, he or she is using a BRRRR to get the cash out of the property for the next deal.

Denise Webster · Answer

Linda, yes — longer hold times should absolutely change how investors underwrite flips.

A few of the earlier comments point in the right direction: the issue is not just whether the property can be renovated. The issue is whether the deal still works if the timeline stretches and the resale price is less forgiving than expected.

I would adjust underwriting in four places:

• MarginThe thinner the spread, the less room there is for delays, price reductions, or lender extensions. I would want more margin now than I would have wanted in a faster resale market.
• Rehab budgetI would include a real contingency, especially for older properties, permit-heavy work, or projects where the scope is not fully confirmed. A rehab budget that has no contingency is usually too optimistic.
• Carry costI would model the deal at more than one hold period. For example:

• 4 months
• 6 months
• 8 months

If the deal becomes weak at 6–8 months, that is important to know before closing.

• Exit assumptionsI would not underwrite only to the top resale comp. I would look at days on market, price reductions, buyer concessions, and whether the neighborhood is still absorbing renovated properties at the expected price point.

From a funding perspective, longer hold times also affect borrower liquidity. Even if the lender likes the collateral, they may be less comfortable if the borrower has no reserves after closing.

The strongest flip files right now are not just the ones with good ARV. They are the ones with clear numbers, realistic timelines, documented budgets, enough liquidity, and an exit plan that still works if the market does not cooperate perfectly.

Bo Smith · Answer

Higher financing costs have completely changed my underwriting. I used to be more aggressive on timelines, but now I'm building in 2-3 months of buffer because the cost of being wrong is too high. On a property with $3,500/month in total carrying costs, every month matters.

My approach shifted: I'm now looking harder at cleaner deals where the scope is more predictable. I'd rather do 4 tight flips than 1 heavy rehab that drags. A "good deal on paper" with unknown rehab risk is worse than a fair deal with predictable execution. The margin for error is smaller now.

I also changed my selection criteria. I'm passing on more structural stuff -- older roofs, foundation questions, outdated HVAC. Those projects have hidden timelines. Cleaner houses, newer systems, simpler scope -- that's where I'm focused. It sounds like you're already thinking about this the right way by asking the question upfront.

What's your market like right now -- are you seeing enough deal flow that you can be selective about property condition, or are you working with what's available?

Bo Smith · Answer

Absolutely. My underwriting has shifted on all three fronts you mentioned. I'm targeting 18-20% margins now instead of 15% because I mentally add an extra 60-90 days to my timeline. Hard money rates are higher, holding costs compound, and the market doesn't always cooperate with your exit timeline anymore.

Rehab budgets have gotten wider too. I'm not being wasteful, but I'm more conservative with my estimates from subs. A job that gets quoted at 50k, I'm budgeting 60k. Then if it comes in at 55k, I actually feel like I won. But more importantly, a deal still pencils if that extra 10k shows up, which used to kill margins for me.

On exit assumptions, I'm building in longer market time. A property that would've sold in 30 days in 2021 might take 45-60 now depending on market. I'm running scenarios for both a quick sale and a slower one. If it only works at the fast exit, I pass. Are you finding that your buyer pools have gotten more selective, or is it just the broader timeline and rates pressuring your numbers?

Bo Smith · Answer

Absolutely. Longer hold times used to be an edge case -- now they're the baseline. I've adjusted all three areas Linda mentions: margins, rehab budgets, and exit assumptions.

On margins, I used to target 15-20% profit. Now I target closer to 25-30% because I'm assuming longer holds and softer buyer demand. On rehab budgets, I add 15-20% padding instead of the old 10-15%, and I get contractor estimates from multiple people because one quote is worthless. On timelines, I underwrite for 6-8 months instead of 4, which doubles the carrying costs. If a deal still works with a 8-month timeline and realistic buyer demand, I feel good about it. If it only pencils at a perfect 4-month exit, I pass.

The math is brutal right now. Higher financing costs mean a deal has to have more spread to survive mistakes. I'm passing on more deals because of this -- better to wait for good ones than take thin ones and hope.

When you're analyzing a flip right now, what margin are you targeting after all costs are factored in, including extended holding?

Bo Smith · Answer

Absolutely. I've tightened margins on almost everything in my pipeline because the hold timeline has gotten longer and harder to predict. A 4-month flip has become a 6-month flip just from market absorption slowdowns alone. That kills your cash flow if you didn't build in the buffer.

What I've changed: I now add 2-3 months of contingency to my timeline estimates upfront. If a property sits, I want to still make sense of it. I'm also being way more selective about rehab scope -- I'd rather do a cleaner cosmetic flip that moves in 5 months than a heavy rehab that ties up capital for 8. The financing costs on that extended hold are brutal right now.

ARVs have also gotten softer in some markets, so I'm backing down my exit price assumptions by 5-10% depending on the area. And on the acquisition side, I'm less aggressive on the initial offer. If the math only works if everything goes perfect, it doesn't work.

Are you finding that buyers are actually waiting longer to purchase, or is the bottleneck more on the rehab and permitting side?

Bo Smith · Answer

Absolutely. I've tightened margins on almost everything in my pipeline because the hold timeline has gotten longer and harder to predict. A 4-month flip has become a 6-month flip just from market absorption slowdowns alone. That kills your cash flow if you didn't build in the buffer.

What I've changed: I now add 2-3 months of contingency to my timeline estimates upfront. If a property sits, I want to still make sense of it. I'm also being way more selective about rehab scope -- I'd rather do a cleaner cosmetic flip that moves in 5 months than a heavy rehab that ties up capital for 8. The financing costs on that extended hold are brutal right now.

ARVs have also gotten softer in some markets, so I'm backing down my exit price assumptions by 5-10% depending on the area. And on the acquisition side, I'm less aggressive on the initial offer. If the math only works if everything goes perfect, it doesn't work.

Are you finding that buyers are actually waiting longer to purchase, or is the bottleneck more on the rehab and permitting side?

Are Longer Hold Times Changing How You Underwrite Flips?

Most Popular Reply