Two identical houses that are about 12 feet from each other and basically on the same lot.One is vacant, and has even been broken into and had wiring and pipes stolen.

From a professional perspective, I love the extra fees I can charge for doing LLC tax returns but I only recommend clients use them for one or more of the following reasons:1) multi member ownership 2) substantial personal net worth liability protection 3) valuation discounts for transferring ownership in an estate planning context 4) privacy / identity protection"None of these apply to me except #4 but certainly NOT worth $800/yr not to mention other states fees, tax filing etc.Thanks Ali.

I grew up in an identical house that my parents still live in.

Say you have two triplexes that are identical in most every respect, except one rents for $500 per unit and the other rents for $600.

I guess I feel like it is just a big part of my identity now. 

If you physically saw the license and verified her identity, it probably isn't an issue.

I had a post yesterday which almost identical to yours.

Just to check, I copied and pasted some of the questions in to the free version of ChatGPT 3.5, and I got back answers that included nearly identical responses.Here is an example from an answer that the CPA replying to this thread posted:Congratulations on your house hack!

(Identical 6 family building, but also has 10, 1 car garages in the rear lot.)

This does not mean they need to be identical but should be used for investment or business purposes.