If you're looking to find our articles on property assignment and bulk reassigning properties/buildings/blocks for agents you can find the links for these below: 
Property Assignment
How To Bulk Reassign Properties
How To Bulk Reassign Buildings/Blocks

Assigning a contractor to a building is very simple and helps to ensure that you can assign specific issues to a specific contractor that you may have an agreement with. This article will show you how you can assign contractors to building profiles to make this easy to do.

To start the process you will need to go Properties > Buildings:

After you've clicked through to Buildings, you will need to find the building you are looking for. This can be done by either using the search bar at the top of the page or by clicking on the next page at the bottom of the page.

Once you've clicked on the building you will need to click on the 'Contractors' section at the top of the page. This will open up a new page where you will need to enter the contractor's name or email address. After entering the name or email address click on '+ Add to this building'

After this has been done the contractor will now appear in the 'Contractors' section on the building.

The next time you have an issue at the building and you wish to instruct the contractor you have just assigned to the building, they will appear towards the top of the list with the building symbol showing they are assigned to this specific building as seen in this example below:

If you wish to check which buildings a contractor has been assigned to, you will need to click into their profile and click into 'Buildings.' Here you will get a list of the buildings the contractor is assigned to as well as the ability to add a building to the contractor's profile: 

If you wish to remove a building from the contractor or vice versa you will need to click on the bin icon beside the contractor name/building name.