I have a new house come to find out there are regular receptacles on same line as GFCI. Is this legal
Is there a sticker at each of the outside outlets saying
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.