OK then this is what you need to do.
You are going to file a 2018 with only one Sch C.
For 2017 you are going to need to print the detailed deprecation worksheet (it is a worksheet so not part of the return), and then you will know:
Asset description
Date acquired
depreciation taken
life used for depreciation.
of each asset from the Sch C that you will not longer use.
Then you will click on Add as asset and entry this above date in the Sch C asset entry worksheet for each asset transferred from the one sch C to the one that will still exist.
It might take a few minutes this year, however after this year, everything will be in right place for future years.
