If you have no passive income for which the passive losses can be used to offset, then the suspended losses will be carried forward.
what do you mean non-passive rental loss carryover? except for rental real estate professionals (and in certain cases self-rental) all rental real estate activities are treated as passive. if they are non-passive you should not have a non-passive carryover because any net losses that that produce a net operating loss become part of your net operating loss which is always non-passive. under current law NOLs can only be carried forward. in any case you don't have the option of when to use them.
We are licensed real estate professionals. And we manage the properties, etc. That's the reason fro non-passive. And we don't have enough income to offset the rental losses this year so that's why the question about carry forward any losses (I knew about the forward only for NOL's).
You need to qualify as a real estate professional and materially participate in each rental activity (or aggregate each one).
See https://www.thetaxadviser.com/issues/2014/jul/skarbnik-july2014.html