To the best of my knowledge, the rules around asset sales still apply to C-Corps, insofar as C-Corps don't need to choose between selling the stock or selling the assets to notch QOZ benefits. But I would not choose a C-Corp as the investment vehicle unless you're taking advantage of Section 1202 or otherwise would like to have institutional capital be your exit strategy. It's a definite no-no for real estate unless you're doing a REIT.