White Leghorn chicks

So I mentioned earlier that we bought 4 chicks in total, well the other two are white leghorns. This wasn't a breeder, but she gets the chicks from a hatchery and she keeps them in her backyard in rather cramped conditions. To me there were too many birds in one pen and she is just selling birds to make a profit. She doesn't seem like the type to really care for all those birds. Needless to say, we will not be buying from her again. We did take two little leghorns, just to save them from the pen. She did say that they were off heat, but they were about 4-5 weeks old and they are bigger than the Marans.