Looking on the internet deeply has found these results:

will be left in good hands is the most popular phrase on the web.

will be left in good hand 10 results on the web	will be left in good hands 1297 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	Jan 5, 2015 ... Marie will be left in good hands and will continue to be well served by city staff in all of our departments." "On behalf of City Council and the City�... Family members naturally assume that their parents and/or grandparents will be left in good hands when put into a Nursing Home, and rightfully so, however that �... Family members naturally assume that their parents and/or grandparents will be left in good hands when put into a Nursing Home, and rightfully so, however that �... Chief Allen Krajcik says the Easton Police Department will be left in good hands. By Paige McAtee (Patch Staff) February 26, 2015 at 4:44pm. Easton Police�...

will be left in good hand

10 results on the web

will be left in good hands

1297 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

Jan 5, 2015 ... Marie will be left in good hands and will continue to be well served by city staff in all of our departments." "On behalf of City Council and the City�...
Family members naturally assume that their parents and/or grandparents will be left in good hands when put into a Nursing Home, and rightfully so, however that �...
Family members naturally assume that their parents and/or grandparents will be left in good hands when put into a Nursing Home, and rightfully so, however that �...
Chief Allen Krajcik says the Easton Police Department will be left in good hands. By Paige McAtee (Patch Staff) February 26, 2015 at 4:44pm. Easton Police�...