BRRRR Risks: What Goes Wrong, What Each Miss Costs, and How to Price It In

A BRRRR fails in a specific way: more cash stays in the deal than you planned, and the rental afterward is thinner than you modeled. It rarely fails all at once. It fails a few thousand dollars at a time across six lines. Here is each one, priced on a real deal, and what a plan that survives them looks like.

The deal: $150,000 purchase, $40,000 rehab, 90% hard money at 11% with 2 points, six-month hold, $260,000 ARV, 75% refinance at 7.25%, $2,300 rent. As planned: $70,825 in, $54,150 back, $16,675 left, about $1,240 a year in cash flow.

1. The appraisal comes in low

The refinance is a percentage of appraised value. If the appraiser says $234,000 instead of $260,000, a 10% miss, the loan is $175,500 instead of $195,000. Cash out drops to about $35,200. Cash left rises from $16,675 to $35,600.

Every 1% of ARV missed is 0.75% of ARV in cash that does not come back, about $1,950 on this deal.

Appraisers are conservative on freshly renovated property, especially when comparable sales are thin or the gap between purchase price and claimed value is large. Underwrite at 5 to 10% below your ARV estimate. If the deal still works there, an on-target appraisal is upside.

2. The rehab runs over

A 15% overrun on a $40,000 budget is $6,000, every dollar of it cash. Cash left rises to $22,675. The ARV needed for full recovery rises by about $1.37 for every rehab dollar, so $6,000 of overrun means the property needs to appraise $8,250 higher to make up for it.

Overruns come from scope you did not see (plumbing behind walls, electrical that fails inspection, a roof that was worse than it looked), from change orders, and from the time cost of a contractor who does not show. Get an inspection before you close, get bids from two contractors, and carry a 15% contingency in the budget from the start.

3. The hold runs long

Six months is the plan. Ten months is common. On a $135,000 hard money loan at 11%, each extra month is about $1,240 of interest plus $450 of holding costs. Four extra months adds about $6,750 to the project, and all of it is cash.

Delays come from permits, contractors, leasing, and lender seasoning. A refinance lender who requires six months of ownership from the deed date will not close in month five regardless of how fast the rehab went. Know the seasoning rule before you buy and count from the right date.

4. The lender cuts the LTV

You planned on 75%. The lender comes back at 70% because the DSCR is thin, the credit score landed in a lower tier, or the property is a duplex. The loan drops from $195,000 to $182,000. Cash out falls by about $12,600. Cash left rises to about $29,300.

The consolation is that the smaller loan has a smaller payment, so cash flow improves by about $1,060 a year. You traded cash out for cash flow. Whether that is acceptable depends on whether you needed the cash for the next deal.

Get the LTV in writing from the refinance lender before you close the purchase, with the conditions that could reduce it.

5. Rates rise between purchase and refinance

Cash out does not depend on the rate. Cash flow does. If the refinance rate is 8% instead of 7.25%, the payment on $195,000 rises by about $100 a month and the cash flow on this deal goes from about $1,240 a year to roughly zero.

You cannot control this one. You can model it. If the deal only cash flows at today’s rate, it is a bet that rates hold for six months.

6. Rent comes in under

The lease sets both the cash flow and, with a DSCR lender, the loan. At $2,100 instead of $2,300, NOI falls by about $1,870 and cash flow goes negative. A DSCR lender computing rent against the full payment sees the ratio drop, and may cut the LTV or the approval. Check rents on comparable renovated units before you buy, not after, and run the finished property through the cap rate calculator to see whether the ARV is supported by its income.

When they stack

They usually do. A 10% appraisal miss, a 15% rehab overrun, a ten-month hold and a 70% LTV on the same deal: total project cost rises to about $218,600, cash invested to $83,600, the refinance loan falls to $163,800, and cash out is about $23,900. Cash left: about $59,700, against $16,675 planned. The property still cash flows, about $3,800 a year on the smaller loan, but you now own a rental with a 27% down payment in it and a hard money bill on top.

That is not a disaster. It is a buy and hold with extra fees. The disaster is when the refinance does not cover the payoff at all, and you are bringing cash to closing to get out of an 11% loan.

Underwriting so the deal survives

Run the calculator with the stressed inputs, not the hopeful ones:

• ARV at 5 to 10% below your estimate.
• Rehab at the higher bid plus 15%.
• Hold at eight to ten months.
• Refinance LTV at 70%.
• Rate a half point above today’s.
• Rent at the low end of comparables.

If the stressed deal still returns most of your cash and still cash flows, offer. If it only works with every assumption landing on target, the offer is too high. The “max purchase price” figure in the calculator, run on stressed inputs, is the offer that survives.

Exit if the refinance fails

If the property will not refinance, the options are: hold on the hard money loan and try again after more seasoning or a better lease, extend the loan (usually for a fee), bring cash to pay it down to a level a lender will refinance, or sell. Selling costs 6 to 8% of the sale price, which on $260,000 is $15,600 to $20,800, and it comes out of the equity you created. Know which of these you would do before you buy, and make sure at least one of them is affordable.

The refinance guide covers how to reduce the appraisal and LTV risks before they happen.