Gleason-Halley Office and Industrial Team

Leveraging in-depth market expertise to deliver results


The Gleason-Halley Office and Industrial Team specializes in the sale and leasing of office, industrial, land and R&D properties across the West Valley submarkets of metropolitan Phoenix.

Our team provides landlord, tenant and investor representation services to local, national, corporate and institutional clients. Leveraging our market expertise with strategic planning, we deliver real estate solutions that meet our clients’ real estate, business and financial objectives.

With a proven track record of success, clients can depend on our ability to draw on extensive market experience to guide them through every step of the leasing, acquisition and disposition process.

Our team


Brian Gleason

Senior Vice President | Greater Phoenix
Phoenix

As a senior vice president with Colliers International, I specialize in the sale and leasing of industrial, office, land and R&D properties, with extensive experience representing corporate and institutional clients, locally and nationally. Comprehensive services include landlord, tenant and investor representation, corporate services, business development and project management.

I partner with Bonnie Halley, senior vice president; and Melissa Marks, associate, to serve clients across the West Valley submarkets of metropolitan Phoenix.

As an industry veteran with more than 35 years of commercial real estate experience, there are few situations I haven’t encountered. Most importantly, I acknowledge what I do not know and defer to other experts, when necessary. I am committed to placing the interests of my clients first, helping them understand what is required of both them and myself, while creating a smooth path to successful transactions.

Having previously served in the role of designated broker, I have a strong commitment to integrity and honesty in all aspects of my work and relationships. Clients and colleagues alike describe me as knowledgeable, conscientious, helpful and easy to work.

Before joining Colliers, I served as vice president of leasing with Phoenix West Commercial in Avondale, successfully establishing the firm as an industry leader in the West Valley. Previously, I held positions as senior vice president for Cornish & Carey Newmark and also senior vice president and designated broker for Trammell Crow Company in San Francisco, with responsibility for developing transaction opportunities for institutional and corporate clients at both firms. I also served as national real estate portfolio manager for the McKesson Corporation. Prior to that, I was a senior vice president with Jones Lang LaSalle.

Bonnie Halley

Senior Vice President | Greater Phoenix
Phoenix

As a senior vice president and licensed associate broker with Colliers International, I specialize in the sale and leasing of industrial, office and land properties, with demonstrated expertise representing landlords, tenants, buyers and sellers. I partner with Brian Gleason, senior vice president; and Melissa Marks, associate, to serve clients across the West Valley submarkets of metropolitan Phoenix.

I bring more than 30 years of experience providing business solutions and real estate expertise to my clients. Comprehensive services include market and financial feasibility studies, site selection, location analysis, demographic reports, targeted marketing, transaction negotiations, and contract support.

Sharply focused on my clients’ success, I ensure they have the essential information to make informed real estate decisions. To assist property owners and investors, I provide financial comparative analyses for various strategies, such as buy, sell, hold and refinance. As a strategic partner, I keep my clients’ interests in the forefront. My goals are to achieve the best results and maximize their financial returns, while saving time by streamlining the process.

Clients describe their experience buying, selling or leasing real estate as a much smoother and less stressful process than expected, due to my being highly responsive and keeping them fully informed.

Prior to joining Colliers, I was a senior vice president and associate broker with Phoenix West Commercial in Avondale. Previously, I was an associate broker with Don Bennett & Associates in Goodyear and Re/Max Commercial in Scottsdale.

During a banking career spanning over 20 years, I managed one of the largest offices for a regional bank. I also served as a commercial lender and portfolio manager. In 1996, I helped form a de novo bank in Scottsdale. My experience includes working on behalf of a national bank regulatory agency, investigating failed banks.

I have served my community as an officer and member of several boards of directors, and am currently on the Board of Directors of the Central Arizona Chapter of CCIM. I am active in my church and love spending time with family and friends in the Northern Arizona pines.

Melissa Marks

Associate | Greater Phoenix
Phoenix

As an associate with Colliers International, I specialize in the sale and leasing of industrial, office and land properties, working on behalf of landlords, tenants, sellers and buyers. I partner with Bonnie Halley and Brian Gleason, senior vice presidents, to serve clients across the West Valley submarkets of metropolitan Phoenix.

Leveraging in-depth market knowledge, I effectively position properties in the marketplace to reach targeted tenants and buyers. I align marketing strategies with my clients’ business objectives to deliver optimal results. Clients appreciate my proactive approach to quickly move property marketing and negotiations forward to save them both time and money.

With more than 10 years of professional expertise in problem-solving, reasoning and analysis, I am able to readily identify and resolve transactional issues. Clients can rely on me to look out for their best interests. Serving as a collaborative partner to my clients, I develop long-term relationships built on mutual trust and respect. I believe a key factor to successfully closing transactions is the degree to which all parties trust each other.

I bring a positive and enthusiastic energy to working with clients and peers, starting each day with an optimistic attitude. I strongly believe in the adage of doing what you love and loving what you do.

Prior to joining Colliers, I was an associate with Phoenix West Commercial in Avondale, specializing in industrial and office properties. In that role, I advised prospective clients on market conditions and drove the negotiation process for successful transactions. I demonstrated exceptional prospecting skills by generating an extensive client base through aggressive marketing and personal referrals from satisfied clients, resulting in recognition as Rookie of the Year.

As administrator for FourteenSix, Inc., a 501(c)(3) organization, I was responsible for financial procedures and policies, provided fiscal and administrative leadership, and oversaw a $250,000 budget. Previously, I served as project coordinator for Toyota in San Diego, where I oversaw the development and implementation of an international policy development program. I also provided leadership to multiple management teams for the integration of a new customer care policy.

My husband and I founded FourteenSix, Inc., an Arizona non-profit organization, 14 years ago. I enjoy pouring my love into the children there in my free time; and I am active in my church, particularly in women and children’s ministry.

West Valley office and industrial specialists

Trusted advisors

As an industry veteran with more than 35 years of experience representing corporate and institutional clients, Brian develops strategic plans and provides expert market insight to guide clients in making informed real estate decisions. He is committed to placing his clients’ interests first and creating a smooth path to successful transactions.

Bonnie brings more than 30 years of experience providing business solutions and real estate expertise to her clients. She is sharply focused on her clients’ success. Her goals are to achieve the best results and maximize her clients’ financial returns, while saving time by streamlining the process.

Leveraging her in-depth market knowledge, Melissa effectively positions properties in the marketplace to reach targeted tenants and buyers. With more than 10 years of professional expertise in problem-solving, reasoning and analysis, Melissa readily identifies and resolves transactions issues.

As your trusted advisors, we advocate on your behalf to achieve your real estate objectives.

Maximizing your property's value

We treat each property as if it were our own, believing each assignment opens the door for us to add value, both now and in the future. Our team collaborates with you to set the right strategy for your building.

It’s impossible to know a property market unless you live, sleep and breathe it, which is why we specialize in the West Valley office and industrial markets. With our in-depth market expertise, we effectively position your building to secure the right tenants and support your ownership goals.

We take a thoughtful approach to define which tenants are most likely to lease space and pay the highest price, and we negotiate lease terms that support your long-term objectives. A critical aspect of our marketing and leasing strategy is understanding the true cost of vacancy and how strong tenant retention can yield solid financial returns.

As your partner, our team is committed to protecting and growing your property investment.

Acquire and sell with confidence

Property needs can quickly change from acquisition to ownership to disposition. Our skilled team adapts to your requirements, provides guidance to optimize your investment strategy, and protects your interests throughout the negotiation, due diligence and transaction process.

Property investments vary widely in returns, risk profile, the amount of hands-on attention required, development potential and liquidity. Our first step is to fully understand your objectives for an investment property.

We identify and evaluate assets that complement your existing portfolio and we consider your income goals, risk profile and property performance requirements. Throughout ownership, our team can help elevate and maximize your property’s value.

When your goals call for disposition, we advise you on the sales strategy, develop a competitive price, determine an acceptable level of risk with various buyers, and negotiate the best terms.

We are committed to exceeding your investment goals.

Expertise that delivers results

Our team has the expertise, skills and tools to intelligently assess your space needs. We outline your options and ensure your leasing decision is informed by your business needs.

If your current space satisfies your requirements, but you are approaching the end of your lease, consider renewing. We will help ensure the space is available and negotiate a new lease.

Relocating may seem like more trouble than it’s worth, but don’t rule it out. Think about what you want to achieve and decide if your existing location supports that objective. The expiration of your lease can offer an opportunity to transform your business and create new efficiencies by relocating. Our team will guide you through every step to find the ideal space and represent your best interests in lease negotiations.

Whether you decide to renew or relocate, you can rely on our team to analyze your situation, assess the market, navigate complex transactions, and help you make strategically sound, long-term decisions.

Our team offers comprehensive landlord, investor and tenant services to meet our clients’ real estate objectives.

Landlord services include:

  • Leasing
  • Disposition and acquisition
  • Strategic asset analysis
  • Building improvement plan
  • Portfolio management strategy
  • Property positioning
  • Competitive advantages
  • Targeted marketing plan
  • Transaction negotiations
  • Market research and analysis

Investor services include:

  • Disposition and acquisition
  • Asset positioning
  • Market research and analysis
  • Broker opinion of value
  • Leasing

Tenant services include:

  • Site selection strategy
  • Buy versus lease analysis
  • Acquisition and disposition negotiations
  • Build-to-suit negotiations
  • New and renewal lease negotiations
  • Lease and operating cost audits
  • Lease restructuring, buyouts, terminations
  • Blend/extend lease negotiations
  • Expansions, consolidations, relocations
  • Subleases
  • Market evaluation
  • Comparative analysis
  • Feasibility studies

In addition, Colliers provides an extensive range of specialized services, including valuation, real estate management, capital markets and project management. Explore all of Colliers’ services here.

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