I am just at the beginning of considering some in home services for my husband. I am aware that by working through an agency that caregivers can be exploited--paid minimum wage or just a bit more while the agency charges far more. I would like to see that our caregivers receive all of what we pay for their services. Further, we cannot avoid what 24/7 care would cost from the agencies here in Phoenix (250K per year!).
Hire two or three caregivers to cover 24/7. Have them split up the week and each works a couple of days at a time. I've been on many private assignments like this and this kind of care arrangement rarely fails.
You have to pay them literally in cash money though. This way you're protected against any potential trouble, and they are too. Cash is non-traceable for both you and the caregivers.
You will have to google “caregiver websites”. The one I used has local caregivers (you can put in your zip code and search for different levels of care) - you can read reviews - some profiles will show that they are certified by your county with background checks etc - you have the option of doing additional background checks right from the site - you can read reviews from other family’s that have used them etc.
We are not allowed to post the actual name here - but the one I used will come up in google and is throughout the US. Best of luck