Prior advice on this situation is that:
When using an old account, where it was formerly MFJ...and switching to MFS the next year.
...1) The person who uses that old account has to be the first person listed in the prior year's MFJ filing. (but we can't guarantee there still won't be issues of some kind...sometimes a new account is easier for both)
...2) The second person listed in the older account is the one who needs to create a new account. And yes, in your situation, the carryover of the rental and depreciation will have to be re-entered manually in the interview (if that information belongs in your own MFS filing).
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Desktop software, on a full MAC or Windows computer, would normally be easier to use for this type of situation. One can create as many MFJ, and MFS tax files as one needs (even messing around with attempting an MFJ filing/switched to MFS for the second person to see if the switch could somehow be accomplished...and abandoning the file if you never figure out how to get the switch to hold).
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
