I've got everything crossed for you Karen. We had some awesome paid carers and I've remained good friends with one of them.
Now some tips for you - always make sure your CALS welcomes the person warmly.
I had a communications book - just a blank book and I would write in it anything significant that happened overnight or any changes in progression. (you and I can think of it like nursing notes - date, name and notes)
Each staff member had to read it on arrival and write at least a short note at the end of the shift. Keep a jar with quality lollies in it beside the book with a label - please enjoy whenever you need a lift. (or something similar and pithy)
They also had a chart to note what peg feeds he had and fluids, but this is because he was notorious for refusing feeds and fluids, but then saying he had them (FTD is a barrel of fun). So that really helped all of us as some days when I had my full day out there could be 2 caregivers doing a shift each so it always meant we had a handover.
I also had a plastic sleeve folder with instructions and locations of household items, and I used lots of photos. As things changed I could just change a single page.
This was particularly important for us because Chris could not speak, so it meant staff did not have to keep asking me things. Staff could easily train each other with this, and as we had several different staff, and some of them only came weekly it really helped them. Our staff were working full time and caring for several different people each day as they may do anything from 1 - 4 hours at each home. So remembering all the bits when you come weekly was difficult!
All our staff remarked to me after Chris died that coming to our house felt like coming to visit a friend, not like coming to work. They found the extra effort to keep them informed made a huge difference and allowed them to feel they were a part of the situation, not just someone coming in for a shift.
Pick and use anything from that which may apply