What would you do (and why)?

[J. A. Marin]

I have a duplex, my only property thus far. It is under my name and I am managing it. I would like to expand and I know at some point I will have to set up an LLC. I am facing a huge expense on my property so I was wondering if I should set up the LLC now and start building the LLC credit? I have the funds to pay for this (the capital expenditure and the LLC costs) outright now but I am just thinking for the future. Eventually I want to buy properties under the LLC.