Q.meyer lemon trees
are there any lemon trees that can be grown outdoors year round in new jersey? Central area,near new brunswick?

It looks like you are in gardening zone 6b. Meyer lemons must be brought indoors for winter in zone 6b:
https://www.gardeningknowhow.com/edible/fruits/lemons/growing-meyer-lemons.htm
The only citrus that is grown outdoors in zone 6 is the trifoliate orange, Citrus trifoliata, which produces fruits that are made into marmalade because they are too bitter to eat fresh. However, you may be able to find a grafted citrus with an edible citrus variety grafted onto a trifoliate orange rootstock. You may be able to find online nurseries or citrus breeders that would sell these.