Long distance caregiving

Seeking opinions on using private caregivers when a LO with dementia lives far from you. Is this doable from a long distance? Anyone successfully doing this? Any tips? What do you do when a caregiver calls in sick?

My LO with dementia lives 800 miles from me or any family. They still live in their home and have 24/7 caregiving. I use some privately hired caregivers and rely on an agency for about 1/3 of the caregiving. I’d like to replace the agency with private care because the agency unfortunately isn’t providing adequate care.

I’m so tired of dealing with this.

Thank you for your help.