Just to add to what has already been said, I would amend that return to move the rental to the schedule E where it belongs.

., there was a technical error, and the section of the tax code describing 15-year property (Section 168(e)(3)(E)) was in fact not amended to include qualified improvement property.So for now, strictly-speaking, in 2018, qualified improvement property is regular old 39-year property that is not eligible for bonus depreciation.We do expect that a technical correction to the law will be made, but for now the IRS has actually stated that it cannot guarantee that absent legislative correction it will accept the legislatively intended change in recovery period and bonus eligibility.Anyway, this is neither here nor there since you have stated you are a landlord of residential rental property rather than non-residential real estate.And this does not affect the application of 100% bonus depreciation to both qualifying new and used property place in service after 9/27/17 and before 1/1/23 that @Yonah Weiss pointed out.

You can amend (re-file) your 2017 return if already filed.

Sometimes it's multiple responses on single threads, because of clarification and/or justification and/or troll-sniping, with an occasional editing/amending to my viewpoint.

But now your accountant might have to amend your tax return. 

So, we have been looking at amending our current Certificate of Formation by adding an Article that makes it a Series LLC.Has anyone done this in Delaware before? 

The prior owner may be able to amend the petition to substitute you as the plaintiff.

Would I be able to amend my 2017 taxes and take advantage of the Tax Cuts and Jobs Act of December 22, 2017 even though my transactions were before December 22, 2017?

Also, take into account the amended rules AB 2299 and SB 1069, and explore the opportunities they could provide you in the neighborhoods you are concentrating on.  

Hey BP,So one of the HOA's that I own a rental in is trying to pass an amendment limiting rentals to 20% of the homes in the neighborhood and all tenants and leases have to be approved by the board of directors of the HOA.From all the research I have done on BP it seems like if this passes I am SOL, and probably will have to sell. is this a correct understanding?