squareone mgmt LLC dj@squareonemgmtllc.com

Commercial property management

A new beginning in property management.

squareone mgmt LLC manages multi-tenant commercial real estate — neighborhood retail centers, strip centers and flex space — with the discipline of an owner and the systems of an institution.

Aerial view of Cross Stone Commons, a two-building retail center in Middletown, Maryland, with the Catoctin ridgeline behind it
Cross Stone Commons · Middletown, Maryland
Since 2016
Industry experience
Retail · Flex
Asset focus
17,763 SF
Under management
Est. 2026
Maryland LLC

The firm

Where it started.

squareone mgmt is a new beginning in property management, originating from a private family portfolio. Over a decade of property management, leasing and commercial real estate experience led to the formation of the company — and to the acquisition of its current client, Cross Stone Commons.

The company was founded on a simple conviction: management works better when the people running a property think like the people who own one. Recoverable expenses get scrutinized rather than approved. Leases get read rather than summarized. Tenants reach a decision-maker rather than a queue.

squareone operates on modern, cloud-based property management and accounting platforms, so every charge traces back to a lease provision and every reconciliation can be shown, line by line, to the tenant who pays it.

Leadership

Diljaan “DJ” Melhi

Founder & Principal

DJ Melhi has spent a decade in commercial real estate as an investor, operator and owner's representative — building businesses on one side of the lease and managing the properties on the other.

That dual perspective is the firm's operating advantage. Having signed leases as a tenant and enforced them as a landlord, he approaches a rent roll knowing what each provision actually costs the business on the other end of it.

Acquisitions. Has led multiple commercial property acquisitions through both 1031 exchange and direct purchase, from underwriting and due diligence through settlement and takeover.

Leasing. Has negotiated and facilitated hundreds of thousands of dollars in commercial lease transactions across retail and flex product.

Operating experience. Founded and operates retail businesses in his own right — payroll, licensing, vendors, point of sale and the rest of it.

Asset management. Lease administration and CAM recovery, capital and restoration projects, property tax appeals, insurance claims, permitting and entitlement matters, and lender covenant reporting.

Governance. Has held leadership roles in the nonprofit sector.

What we do

Full-service management for the portfolio we own.

01

Lease administration

Abstracting, rent rolls, escalation schedules, options and critical dates tracked against the executed document — not a summary of it.

02

Billing & collections

Monthly base rent and triple-net invoicing, tenant portal and online payments, receivables monitoring and delinquency management.

03

CAM & recovery

Operating expense pools, pro rata shares, caps and collars, annual reconciliation, and the tenant correspondence that explains it.

04

Vendor management

Landscaping, snow removal, sweeping, trash, fire protection and life safety — competitively bid, contracted, and held to scope.

05

Property accounting

Integrated property and general ledger accounting, budgeting, owner reporting and lender covenant compliance.

06

Risk & compliance

Tenant certificates of insurance, additional-insured requirements, estoppels and subordination agreements, and claims coordination.

07

Capital projects

Repairs, tenant improvements and restoration work — scoped, contracted, insured and supervised through completion.

08

Tenant relations

A direct line to the landlord. Requests handled by the people who can actually decide them.

Portfolio

Managed properties.

Cross Stone Commons from the air

Cross Stone Commons

100 & 200 Middletown Parkway · Middletown, Frederick County, Maryland

Under management
Asset type
Retail center
Buildings
Two
Tenants
Eight
Gross leasable
17,763 SF
Managed since
Aug 2026

Contact

Tenant, vendor or counterparty — reach us directly.

Correspondence regarding any property under squareone management — maintenance requests, certificates of insurance, invoices and lease matters — should be directed to the office.

dj@squareonemgmtllc.com