Relocation can be potentially traumatic for the person with dementia. Focus on the transition. The best way to reduce a person's anxiety and help them become oriented is to have a familiar person with them through the intake process. If possible, have two people come for the move - one who can attend to the administrative details and the other who can stay with the patient. In most cases having a relative or a professional caregiver come with you is best.
If you are bringing a home care aide or other professional, make sure to get permission from the facility to have them there. Facilities will usually agree as long as the person is not providing care. You want to tell them that the aide is just there to help orient the person, not to help feed or bathe them, etc... If the patient needs someone to care for them in this way, the facility will probably want you to "hire" one of their own staff to do these tasks. Most facilities usually take this position because of liability.How long that person should be available, depends on your resources and the situation. For instance, after moving, the patient may be fine during the day but anxious during the night. In this case, you might want to have someone stay with them during the night.