LLC tax as Disregarded Entity

[Weikang Chen]

Hi,

I just create a one member LLC and trying to add my properties to this new LLC. Since it's a single member LLC it's default to tax as "Disregarded Entity" like a Sole Proprietorship entity(pass-throught income?). It looks like it's not even required to obtain an EIN in some states. But I will probably going to get one anyway.

If I keep it as Disregarded Entity..  

Do I need to file LLC tax seperately?

Can I still able to deduct expenses like S-Corp?

What other tax benefits vs other entity type like S-Corp?

Thanks

Weikang