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Demonstration accountRead-only — this company is illustrative, and nothing here can be changed
Real estate investor — rentals & flips

Marlowe Holdings

23 rental doors · 6 active flips · $8.9M portfolio

Marlowe Holdings owns 23 rental doors across single-family and small multifamily, and turns six to nine flips a year. Everything runs through one operating account and one spreadsheet. The rentals throw off steady cash but three of them are cash-flow negative after true capex reserves. The flips look profitable on the HUD but nobody has ever charged holding costs or the owner's own time against them.

The question on the table

Should I keep flipping, or roll the flip capital into more doors and buy back my calendar?

Company file

Rental doors
23
Active flips
6
Portfolio value
$8.9M
Debt
$5.6M
Gross rents
$34.8k/mo
True net cash flow
$6.1k/mo

What the system found

$6.1k → $11.4k

Monthly net cash flow after the reprice, refi, and three exits

$412k

Flip profit that was really unpaid owner labor and holding cost

19 hrs/week

Owner time returned by the turnover and screening system

3 doors

Sold — they never earned their capex reserve

BK-OSComprehensive Financial AnalysisScenario SimulatorCash Flow CommandRevenue Operating SystemCompliance & Risk

Door-by-door truth, real flip margins after holding and labor, the capital allocation decision, and the tax path.

BK-OS · Run All Layers

Cut flips to three a year, buy four doors, price your own labor

Open the real tool

Recommendation: reduce to three flips a year — only the two-bath cosmetic profile that has never missed its underwriting — and redeploy the freed capital into four small multifamily doors in the two submarkets where rent growth is outrunning taxes.

Charged properly, the flip business earned $412k less than reported over the trailing 24 months. Holding costs on the two heavy-rehab projects consumed the entire spread, and 780 hours of owner labor was never charged to anything.

The rentals are the opposite story: understated. Three doors are genuinely bad and should be sold, but the remaining twenty are producing a 9.1% cash-on-cash return that is being masked in the blended number by those three.

Reported flip profit (24 mo)

$688k

As shown on the HUDs

True flip profit

$276k

After holding costs and owner labor at $85/hr

Rental cash-on-cash (all 23)

6.4%

Rental cash-on-cash (best 20)

9.1%

Owner hours per flip

130

Owner hours per door per year

11

Why this matters

Flips feel profitable because the owner's time is free and holding costs are invisible. Once both are priced, the ranking of the two businesses flips completely.

19 hrs/week returned

Comprehensive Financial Analysis

Every door, with the reserve actually charged

Open the real tool
PropertyRentPITIReserveNetCoCCall
Kestrel Ave 4-plex$5,400$3,020$540$1,19013.8%Hold
Bayard St duplex$3,100$1,740$310$69011.2%Hold
Linden Row 6-unit$7,650$4,480$765$1,41010.4%Hold
Ashcroft SFR ×5$8,750$5,390$875$1,1908.6%Hold
Pell Street duplex$2,450$1,610$245$3556.1%Reprice
Verner Ct SFR ×2$3,200$2,290$320$1903.2%Reprice
Hollis Ave SFR$1,250$1,180$125-$255Sell
Dunmore SFR$1,340$1,290$134-$284Sell
Sabine St SFR$1,660$1,540$166-$266Sell
  • HighThree doors have never covered their own reserve

    Hollis, Dunmore, and Sabine were bought in 2021 at peak basis with 2021 insurance assumptions. Combined they drain $9.7k a year and carry $61k of deferred capex.

  • HighEleven units are 8–14% below market rent

    Long-tenured tenants who have never been renewed at market. A staged 5% escalation over two renewal cycles adds $2,180 a month without triggering turnover risk.

  • MediumTwo loans are still on hard-money terms 19 months later

    Refinancing both into 30-year conventional saves $1,940 a month and removes the only near-term maturity in the portfolio.

  • LowNo entity separation between flips and rentals

    One judgment on a flip currently reaches all 23 doors.

Why this matters

A rental is not profitable until the roof, the HVAC, and the turnover are funded out of its own rent. Most investors find out which doors were never profitable during the month all three come due.

Scenario Simulator

Flip-by-flip, with holding cost and labor charged

Open the real tool
ProjectSpreadDays heldCarryOwner hrsTrue profit
Wexford cosmetic$71k94$14k88$49k
Ridgeline cosmetic$64k101$15k92$41k
Calder two-bath$88k112$19k104$60k
Talmadge full gut$142k289$61k310$55k
Bellows addition$118k334$74k286$20k
Cranbrook full gut$96k301$66k298-$5k

The pattern is unambiguous: cosmetic and two-bath projects under 120 days returned 58–69% of their spread as real profit. Every project over 250 days returned less than 20%, and one lost money once labor was charged.

Simulated forward: three cosmetic flips a year plus four additional doors produces $54k more annual profit than nine mixed flips, using 41% less of the owner's calendar.

Why this matters

The HUD tells you the spread. It does not tell you what the six months cost you, and it never tells you what else that capital could have done.

Cash Flow Command

13-week cash with two rehabs running

Open the real tool

Current pattern

$9k

Sell the three losing doors

$63k

+ refi the two hard-money loans

$88k

+ cap concurrent rehabs at two

$121k
Why this matters

Investors do not run out of equity, they run out of cash in week seven of a rehab with a draw request pending and a tenant turnover on the same Friday.

Revenue Operating System

The turnover and screening system

Open the real tool
  • Pre-turn scheduling at notice, not at move-out

    Cuts average turn from 19 days to 8

  • Standardized finish package across all doors

    One paint color, one flooring SKU, one fixture set

  • Renewal outreach at 120 days with a staged increase

    Removes the awkward market-rate conversation

  • Screening criteria written down and applied identically

    Fair-housing exposure disappears when the rule is the rule

  • Draw schedule and scope lock on every rehab

    Change orders were the entire overrun on both gut projects

Average turn

19 → 8 days

Annual vacancy cost

$41k → $17k

Owner hours per week

46 → 27

Why this matters

Vacancy is the largest expense in a rental portfolio and it is almost entirely a process problem, not a market problem.

Compliance & Risk

The tax and entity posture nobody set up

Open the real tool
  • HighFlips and rentals share one entity

    Dealer classification risk contaminates the rental holdings and can disqualify 1031 treatment on the wrong sale.

  • HighThree planned sales are candidates for a 1031 exchange

    Identification is a 45-day clock. Selling first and planning after forfeits roughly $84k of deferral.

  • MediumNo cost segregation study on the 6-unit or the 4-plex

    Modeled first-year benefit of $61k in accelerated depreciation.

  • LowInsurance certificates lapse on two contractors

    An uninsured subcontractor injury on a flip currently reaches the rental equity.

"I thought the flips were paying for the rentals. It was the other way around the whole time — the rentals were funding my hobby."

Owner, Marlowe Holdings
Why this matters

Flip income is ordinary income and self-employment taxed. Rental income is not. Running both through one entity is the most expensive filing decision a small investor makes.

What would this look like for your business?

Marlowe Holdings is illustrative. The tools are not. Point them at your own numbers and you will have the first version of this file inside an afternoon.

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