Hi Eric, I am not a tax expert, but a businessman, having more property under one LLC/Corp is a risky one. I am not sure about 10 properties, but what my attorney told me was if you hold one property per llc adds an additional layer of protection on the liability side of it. My structure is this create one Main LLC that will be shareholders of sub-LLCs. That way, if you are to sell, you just sell LLC1 or LLC2 or LLC8, a simple change in ownership is all it takes for the sale. I am not sure what you are trying to achieve, but it is almost the same, and an LLC can be taxed at entity level or pass through, it means that you can choose double taxation (taxed as regular corp) or not (taxed as S-Corp). The only difference between LLC and Corps, is with corps your dividend is dependent on how much % shares you own, and on LLC, you can have different sharing agreements. For the tax experts, please correct me if I am wrong, would also like additional input.
LLC/Corp Structure:
Main LLC
> LLC 1, LLC 2, LLC 3, ..., LLC10 etc.