I have 5 regular receptacles outside with one GFCIS on same circuit is this legal?
Is there a sticker at each of the outside outlets saying GFCI Protected?  

If not, this is a code violation.  Raise an objection to the builder / seller / warranty company.  They need to put the stickers on if they are protected, or fit a GFCI device somewhere if they are not.

Hopefully the GFCI device will be sited indoors - it will last a lot longer there.