Compared to the traditional contract (CCDC 2 – 2008), which requires the owner to manage the two contractors separately, the consolidation of the role of advisor and contractor in a project construction contract reduces the risk of disputes and disagreements between the planning consultant and the contractor during construction; However, this approach also removes a level of control and balance between these two roles, as the design consultant is no longer independent and directly with the owner. Separate qualified advice for the owner is particularly important if the owner does not wish to rely on the builder`s design contractor as a payment certifier under the contract, and this role plays directly or through a separate contract. The «contract for the agreed price» format (CCDC 2 – 2008) is used by the owner in combination with a separate consulting contract (i.e. the standard owner`s consulting contract for engineers, either standard industry models such as ACEC 31 – 2010 for engineers or raic 6 – 2017 for architects), under which the services provided by planning advisors and owner sub-advisors for the provision of project planning services contract management services remain at the owner`s expense during the construction phase. These lists of master`s contracts should be established for a pre-defined period or with update procedures to include new contractors in the roll-up table and be accompanied by pre-qualification rules setting a maximum value for a given task, so that all employment contracts exceeding the maximum value can be awarded as part of a public tendering process. While the trustee has more contractual risks of taking direct responsibility for the subcontractors` performance in relation to the service construction management contract (CCDC 5A – 2010), the owner remains at risk for the cost and time uncertainties associated with this model, while the project is designed, auctioned and evaluated in phases.