I am new to the lawn care and maintenance aspect of this. I am living with a friend that bought a house recently and we are wanting to put more attention to his lawn. So last year we laid a winter mix seed and fertilizer down. I live currently in the Midwest (Michigan) I understand it is most likely to early to determine what needs to be done to yield and healthy grass. Sorry if I strayed from the point but my question is this grass or a weed. Please check the pictures, this seems to be populating in random spots all across the lawn starting from the house working its way outwards.
(If Pictures are not clear enough I can upload more)
Thanks for your help.