How to take advantage of 2018 taxes

[Account Closed]

Hello all, I'm new to the real estate investment game in Boston. I currently own the rental property under my own name and deferring to put the property under an LLC/S-corp until I accumulate another one. Though, I'm not sure if deferring to structure the rental as an S-corp or LLC would hurt me in 2018 tax filing. Or should I get a business tax filing ID? What should I do in order to take the full advantage of the new tax code?