Professional Property Management

Trusted Management for Quality Commercial Properties

Hands-on property management for medical and professional office buildings across Long Island and the Southeastern United States.

400K+

Square Feet Managed

Medical

& Professional Office

Multi-State

Portfolio Reach

Owner-Operated.
Tenant-Focused.

GSB Property Management delivers attentive, owner-level care to every property in our portfolio. We specialize in medical and professional office buildings, ensuring clean, well-maintained spaces that help tenants thrive.

Long Island & Southeast U.S.

We manage properties across New York's Long Island and key markets in the Southeastern United States.

Hands-On Approach

Our principals are directly involved in daily operations — responsive, accountable, and always accessible.

Medical Office Expertise

Purpose-built management for healthcare tenants — from compliance-ready facilities to seamless day-to-day operations.

Full-Service Property Management

Comprehensive management solutions that protect your investment and keep tenants satisfied.

Property Operations

Day-to-day building operations, vendor coordination, maintenance scheduling, and preventive care to keep properties running smoothly.

Lease Administration

Lease tracking, rent collection, renewal management, and tenant communications handled with precision and professionalism.

Financial Reporting

Monthly and annual financial statements, budget preparation, CAM reconciliations, and transparent owner reporting.

Tenant Relations

Responsive tenant support, move-in/move-out coordination, and proactive communication to maintain high retention rates.

Building Improvements

Capital project oversight, contractor management, and strategic upgrades that enhance property value and tenant experience.

Compliance & Insurance

Certificate of insurance tracking, code compliance, fire safety management, and regulatory coordination for all property types.

We're Here to Help

Whether you're a current tenant, prospective tenant, or property owner — reach out anytime.

Office

445 Broadhollow Road, CL-42
Melville, NY 11747

Tenant Portal

Access maintenance requests, payment information, and building notices.

Send Us a Message

We typically respond within one business day.