Commercial Leasing Administrator

Altis Technology; Mississauga; On-site; CAD 45,000 - 65,000; Full time

Job summary

Altis Technology in Mississauga, ON is seeking a Leasing and Office Administrator to support a busy corporate office. You will work across commercial leasing, property administration, and accounting, helping keep day-to-day activities organized and moving forward.

This role rewards accuracy, initiative, and strong follow-through as you liaise with tenants, contractors, and internal stakeholders to manage leases, records, and routine bookkeeping using QuickBooks and Google Drive.

Qualifications

• Previous experience in commercial real estate, commercial property management, or lease administration is required.
• Strong understanding of commercial leases, renewals, tenant coordination, rent rolls, and ongoing lease administration.
• Strong proficiency with Microsoft Excel and Word, Google Sheets, Google Drive, and Gmail.
• Working knowledge of QuickBooks is preferred.
• Strong organizational skills with accuracy, attention to detail, discretion, and follow-through.
• Confident, professional communication with tenants, contractors, lawyers, and external service providers.
• A proactive, resourceful approach with the ability to manage changing priorities and independently resolve routine issues.

Responsibilities

• Support lease administration, including leases, renewals, amendments, rent rolls, deadlines, and tenant correspondence.
• Coordinate tenant requirements, move-ins/move-outs, parking, and routine leasing matters.
• Communicate with tenants, contractors, lawyers, suppliers, and service providers to follow through on outstanding items.
• Coordinate property services, including obtaining quotations and arranging repairs, maintenance, snow removal, and other building services.
• Maintain schedules, electronic filing systems, Google Drive records, corporate documents, correspondence, and general office needs.
• Process accounts payable/receivable transactions, maintain supporting records, and assist with routine bookkeeping and rent-related matters.
• Enter and maintain accounting information and supporting documentation in QuickBooks.

Skills

Commercial real estate

Lease administration

Microsoft Excel

Google Drive

Communication skills

Organizational skills

Attention to detail

Proactive

Tenant coordination

Tools

QuickBooks

Google Sheets

Gmail

Microsoft Word

Job description

Job Type: Temp to perm

Duration: 6-month contract, will convert to permanent based on performance

Location: Mississauga, ON (On-site)

Language: Strong written and spoken English required

Background Check Requirements: Criminal Record Check and employment references required

About the Opportunity

This is an exciting opportunity for a highly organized and proactive Leasing and Office Administrator to support a busy corporate office environment. Working across commercial leasing, property administration, accounting, and general office operations, youll play an important role in keeping day-to-day activities organized and moving forward.

Youll work closely with tenants, contractors, legal professionals, suppliers, and internal stakeholders, balancing routine administration with more complex requests. This role is well suited to someone who takes pride in accuracy, enjoys learning, and can confidently follow matters through to completion.

Whats In It for You

Youll gain hands-on exposure to multiple areas of commercial real estate administration while building your experience across leasing, property operations, and accounting. Youll join a professional environment where initiative, reliability, curiosity, and strong follow-through are valued.

Your Responsibilities

• Youll support commercial lease administration, including leases, renewals, amendments, rent rolls, critical dates, tenant correspondence, and property records.
• Youll coordinate tenant requirements, including move-ins, move-outs, parking allocations, and routine leasing and property matters.
• Youll communicate with tenants, contractors, lawyers, suppliers, and service providers, ensuring outstanding items are followed through to completion.
• Youll coordinate property services, including obtaining quotations and arranging repairs, maintenance, snow removal, and other building services.
• Youll maintain schedules, electronic filing systems, Google Drive records, corporate documents, correspondence, and general office requirements.
• Youll process accounts payable and receivable transactions, maintain supporting records, and assist with routine bookkeeping and rent-related financial matters.
• Youll enter and maintain accounting information and supporting documentation in QuickBooks.

Skills and Qualifications

• Previous experience in commercial real estate, commercial property management, or lease administration is required
• Strong understanding of commercial leases, renewals, tenant coordination, rent rolls, and ongoing lease administration.
• Strong proficiency with Microsoft Excel and Word, Google Sheets, Google Drive, and Gmail.
• Working knowledge of QuickBooks is preferred.
• Strong organizational skills with excellent accuracy, attention to detail, discretion, and follow-through.
• Confident, professional communication skills when working with tenants, contractors, lawyers, and external service providers.
• A proactive, resourceful approach with the ability to manage changing priorities and independently resolve routine issues.

We appreciate the time and effort all applicants invest in their submissions. Please note that only candidates shortlisted for this role will be contacted directly. However, your profile will remain under consideration for future opportunities that align with your experience and career goals.All qualified applicants will receive fair consideration for employment. We welcome individuals of all backgrounds, experiences, and identities including those who identify as women, members of racialized groups, Indigenous Peoples, persons with disabilities, and 2SLGBTQIA+ communities. If you require an accommodation, please review our accessibility policy and reach out to our accessibility officer with any questions. Our human recruiters review all applications and always make the final hiring decision. On occasion, we also use AI-assisted tools to help review applications.