Doing business in multiple states (LLC question)

[Johnathan Norman]

Here is the deal, over the course of the next year or two I plan to purchase multiple small apartment complexes across the US. My original plan was to keep it "simple" and have 1 LLC for X apartment complexes until i got to lets say 1000 units.

My initial plan was to just get a Delaware LLC and pay the foreign entity fee for each state in which I did business. My hope was that I could simply do 1 tax return but a friend just told me I would have to do a separate tax return per state. Is that the case? While i dont mind paying fees etc.. filing yet another tax return seems like a pain and makes me question the value of simply having a single LLC.