EMERGING

From 11 Days to 4: My Vacancy Ledger After Hiring an 8% Manager

I self-managed a duplex for three years and kept a spreadsheet to prove it beat paying a manager. The spreadsheet was wrong about time. At 8 percent of rent, my vacancies dropped from 11 days to 4.

Gustavo Renteria
Staff Writer
May 21, 2026 · 4 min read

At 2:05 on a November morning I lay on a tenant's bathroom floor in my pajamas with a shop vac running, feeding a wrecked water heater line into a bucket, while my phone filled with work emails for a job that actually paid me. The heater had let go around midnight. My tenant, bless her, held the flashlight. I did the math on the tile: $640 for an emergency plumber, no markup, and my own labor priced at whatev 2 a.m. is worth.

I owned the east side duplex with a $71,000 mortgage left at 4.875 percent, and I managed both units myself for three years cuz 8 percent of $1,450 a month sounded like paying a stranger to cash my checks. I kept a spreadsheet about it. The spreadsheet tracked paint, plumbers, listings, showings, and every vacancy day at $47.67, and by the end of 2024 it had recorded 20 vacancy days across six turnovers, plus one February I will get to.

The spreadsheet said self-managing was free. It was lying by exactly six hours a month, and it buried the number that actually decides everything in this business: how many days pass between one tenant's moving truck and the next tenant's signed lease.

three years of my own listings

For three years my entire marketing department was a hand-written yard sign, a Zillow listing I refreshed at 9 pm, and my own evenings, sacrificed one showing at a time. Forty-one showings in one October. I wrote the ads, screened applicants by gut feel, and handed keys across the hoods of cars, and the ledger logged an average of 11 vacant days per turnover, which I wore like a merit badge.

the Facebook tenant who skipped February

The tenant who skipped February found me in a neighborhood Facebook group, which is not a screening process, it is a coincidence with a comment section. He read fine at the signing. February came in at zero dollars, March matched it, and by April I was negotiating cash for keys with a man who had absorbed my private number from the lease papers. The hole was $2,780 before repainting. My spreadsheet recorded all of it with perfect accuracy and zero mercy.

what 8 percent of $1,450 buys

Eight percent of $1,450 is $116 a month, per unit, $2,784 a year for both, which was the exact number my spreadsheet had defended for three years like a family recipe. The fee buys listing syndication to more than forty sites, income verification at three times rent, eviction history searches, a 24-hour maintenance line, and a leasing agent who lists 30 days before a lease ends instead of the day after it breaks. The last item is the whole ballgame. I talked through the number with my sister, who manages nothing and still called it sane.

the waitlist had fourteen names

The manager's applicant pipeline held fourteen pre-screened names the day I signed, which is a thing I never once had in three years of yard signs. I chewed on the contract for a weekend anyways, cuz eight percent had been my villain since 2023. Unit A turned over in March. The next tenant had signed 26 days before the old lease ended, the make-ready took four days of paint and clean, and the move-in happened on day five, which made the vacancy ledger read 4 where my hand-written average said 11. Four days, door to door.

repairs cost more. I let them.

The manager's plumber bills $980 for a job my guy did for $820, and six of the first nine work orders carried a similar markup, so yes, the fee costs more than it looks. The markup is real. I figured that out around work order three and let it stand, because the 24-hour line has taken two after-hours calls in six months, and neither one woke me, and you cannot price that sentence honestly without having lain on a bathroom floor at 2 a.m. holding a shop vac.

a $25,000 HELOC for one bathroom

The bathroom renovation in unit B was the first thing I funded like an owner instead of an overworked landlord: a $25,000 HELOC opened in January at 8.25 percent, interest-only during the draw phase at about $172 a month. The tile guy showed up on time. He came off the manager's vendor list, which apparently is a list of people who answer phones, and unit B's rent moved from $1,450 to $1,525 with the February renewals.

the reserve fund at 4 percent

The $9,200 operating reserve moved out of a checking account paying nothing and into a high-yield savings account at 4.0 percent, where it earns about $31 a month while it waits for water heaters to die. Thirty-one dollars. Petty money compounds too, and unlike my former Facebook tenant, it has never once paid late.

April's line on the new ledger

April's line on the new ledger reads like this: rents collected $2,975, management fees $238, vacancy 4 days at $196, HELOC interest $172, reserve interest $31. Net it against April of 2024 and the cash difference is a wash, maybe ten dollars one direction or the other, which my spreadsheet finds almost insulting. The six hours a month are the profit. The spreadsheet ultimately told the truth.

the 2 a.m. floor, from a couch

The water heater in unit B began weeping on a Tuesday afternoon last month, and I reported it from my couch thru the management portal, went to my daughter's soccer game, and watched the invoice arrive like the tide. I missed nothing. Lying on that tile at 2:05 in the morning with a shop vac was three years of my life, and I do not miss the version of me who figured it was free.