You retain and pay the surveyor directly. It is entirely up to you who you instruct. If you wish we can recommend someone. While any such recommendations will be made in good faith we cannot take any responsibility if you are not happy with the manner in which the surveyor performs his or her role.
Please send us the survey report once you receive it. Our concern with this will be on matters that relate to title only. If any non-legal matters need to be addressed you will need to deal directly with the agent and if they result in any change to your agreement to purchase you should advise us.