What do tenants say about Mark Koplowitz?

Mark Koplowitz has an average tenant rating of 3.2 out of 5 across 1 reviews.

How many violations does Mark Koplowitz have across their portfolio?

Buildings managed by Mark Koplowitz average 11.3 open violations per unit, more than the citywide average of 0.81.

Would renters recommend buildings managed by Mark Koplowitz?

0% of tenants who reviewed buildings managed by Mark Koplowitz would recommend living there.

How many buildings does Mark Koplowitz own or manage?

Mark Koplowitz owns or manages 2 buildings totalling 10 units.

Is Mark Koplowitz responsive to tenants?

100% of tenants who reviewed a building managed by Mark Koplowitz approve of how it is run.

Has Mark Koplowitz had any evictions?

Mark Koplowitz has no recorded evictions across their portfolio.

Is Mark Koplowitz on the worst landlords list?

Mark Koplowitz has not appeared on the NYC worst landlords list.

Mark Koplowitz

Shareholder·2 buildings·10 units

3.3

1 reviews

Highlights

Evictions

Litigation cases

About Mark Koplowitz

Mark Koplowitz is a mixed-profile shareholder. Across their buildings, tenants rate them 3.3/5 across 1 review, with 0% recommending their buildings and 100% approving of them as an owner or associate. Their portfolio records 0 evictions, 113 open violations, and 1 litigation case. Data last updated September 5, 2026. Mark Koplowitz is a shareholder associated with 2 buildings and 10 units across Williamsburg in Brooklyn. The portfolio is concentrated in Williamsburg in Brooklyn. The buildings were built primarily in the 1930s and are mostly low-rise. None of the associated buildings have rent-stabilized apartments. Renters can review each building's ratings, reviews, and public records on its own page.

Renter recommendations

Renters recommend associated buildings

Renters approve of this owner or associate

Reviews

Former tenant·Over 3 years ago

Alright I guess

Pros

Spacious Fast response/repair

Cons

Loud street and sirens

Advice to the owners

Pest control

Buildings associated with MARK KOPLOWITZ

791 Flushing Avenue

Williamsburg

789 Flushing Avenue

3.3(1)

Williamsburg

Building ratings

Cleanliness

Trash management

Pest control

Water pressure

Heat

Neighbors

Noise levels

Owner responsiveness

Cleanliness

Trash management

Pest control

Water pressure

Heat

Neighbors

Noise levels

Owner responsiveness

Rents and deposits

Renters received their security deposits back

Electronic rent payments

Open violations

From past 10 years · Updated 5 days ago

Average violations per unit for this owner or associate is worse than the city average.

Owner average11.30Violations per unit

NYC average0.81Violations per unit

19Class C

Immediately hazardous

Rodents, pest, mold, inadequate heat or hot water, defective building parts

67Class B

Hazardous

Smoke detector issues, inadequate lighting, no lighting for stairways

27Class A

Non-hazardous

No peephole on a door, no street number on the building, unlawful keeping of animals

0Class I

Missing info

Missing or non-compliant with administrative information orders or filings

FAQs

Mark Koplowitz

Shareholder·2 buildings·10 units

3.3

1 reviews