take it from here

To assume control of and continue the course of action begun by someone else. Thank you for your work on the case so far, Shane, but I'll take it from here. We've done all we can—I think it's best if we just let the authorities take it from here.

take it from there

1. To assume control of and continue the course of action begun by someone else. Thank you for all the work you've done on the case so far, Shane, I'll take it from there on Monday. We've done all we can—I think it's best if we just let the authorities take it from there.

2. To decide on or begin a new course of action from a specific point onward, typically after some other action or condition has occurred first. Let's just see how much the repairs will cost and take it from there. We've got to see what the studio thinks of your changes to the script, and then we can take it from there.

take it from here

Also, take it from there. Continue from a certain point onwards, as in I've done what I could with correcting the blatant errors; you'll have to take it from here . [Mid-1900s]

take it from ˈhere/ˈthere

1 continue doing something that somebody else has started: I explained how to start the machine, and let him take it from there. ♢ You work out who you want in your team and I’ll take it from there.
2 if somebody says that they/we will take it from here/there, they mean that they/we will do something and then decide what to do next: We’ll work out a business plan, see what the bank says, and then take it from there.