I want to claim the caregiver amount for an infirm dependant who doesn't live with me. How do I enter her address? Schedule 5 shows my address where it should be her's.

There is no need to enter the address of the dependant. The other information you provide (SIN, name, date of birth, etc.) is all that is required.

To remove the address, indicate in the Dependant Information section that the dependant does not reside with you.

Thanks Jennifer.  Problem is that I didn't enter an address - TurboTax filled in my address.  I guess my question should have been clearer i.e. how do I change the address showing for the dependent who doesn't live with me.

There's no need to remove it. The setting is automatic in the software but that information is not transmitted to CRA when you use NETFILE.

In the EasyStep screen under:  Dependent's Summary - Dependent's Info - Lived with taxpayer in 2017; 'No" is checked.  In the Forms view, my address shows up on Schedule 5, Line 307 below her name

If you are printing the return for mail to CRA, you can manually remove the address if you wish. Otherwise, if you are using NETFILE to file the return, that information is NOT transmitted to CRA.