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B

Brendan Osullivan

Site Manager·1 building·1 unit
3.0

1 reviews

Highlights

No
Evictions
No
Litigation cases

About Brendan Osullivan

Brendan Osullivan is a modestly rated but responsible site manager. Across their buildings, tenants rate them 3.0/5 across 1 review, with 0% recommending their buildings and 0% approving of them as an owner or associate. Their portfolio records 0 evictions, 0 open violations, and 0 litigation cases. Data last updated September 8, 2026. Across Riverdale in The Bronx, Brendan Osullivan is a site manager associated with 1 building and 1 unit. The portfolio is concentrated in Riverdale in The Bronx. The building was built in the 1900s and is classified as a low-rise. None of the associated building has rent-stabilized apartments. Prospective renters can find building-level ratings, reviews, and open-data records on the associated building pages.

Renter recommendations

-%

Renters recommend associated buildings

-%

Renters approve of this owner or associate

Reviews

Former tenant·20 minutes ago

It was ok

Pros

nice renovated and spacious

Cons

constant issues with boiler and heating throughout winter. Also rented to a pedophile across the street.

Advice to the owners

get it together

Buildings associated with BRENDAN OSULLIVAN

  • 3630 Greystone Ave

    3630 Greystone Ave

    3.0(1)

    Riverdale

3630 Greystone Ave

3630 Greystone Ave

3.0(1)

Riverdale

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 better than the city average.

Owner averageLess than 0.01Violations per unit
NYC average0.81Violations per unit
0Class C
Immediately hazardous

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

0Class B
Hazardous

Smoke detector issues, inadequate lighting, no lighting for stairways

0Class 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

Brendan Osullivan has an average tenant rating of 3.0 out of 5 across 1 reviews.

0% of tenants who reviewed buildings managed by Brendan Osullivan would recommend living there.

Brendan Osullivan has not appeared on the NYC worst landlords list.

Brendan Osullivan has no housing court litigation cases across their portfolio.

Brendan Osullivan owns or manages 1 building totalling 1 unit.

0% of tenants who reviewed a building managed by Brendan Osullivan approve of how it is run.

Brendan Osullivan has no recorded evictions across their portfolio.

B

Brendan Osullivan

Site Manager·1 building·1 unit
3.0

1 reviews

Follow us

For renters

Apartments for rent in NYCRenting tips and resourcesVerified apartment listings in NYCBuildings and owners in NYCOwners in NYCNYC market analysis reports

For landlords

iglooIQListings quality policy

Trending neighborhoods

Apartments in AstoriaApartments in Bedford-StuyvesantApartments in BushwickApartments in ChelseaApartments in Financial DistrictApartments in SohoApartments in Upper East SideApartments in Upper West SideApartments in West VillageApartments in Williamsburg

NYC boroughs

Apartments in BronxApartments in BrooklynApartments in ManhattanApartments in QueensApartments in Staten Island

2-bedroom apartments

2-bedroom apartments in Bronx2-bedroom apartments in Brooklyn2-bedroom apartments in Manhattan2-bedroom apartments in Queens2-bedroom apartments in Staten Island

Support

FAQContact usLive support

Legal

Terms of usePrivacy policyCommunity guidelinesAgency disclosureFair housing disclosureStandard operating procedures
© 2026 Openigloo Inc. All rights reserved.