Clean, modern, I like the way the A and J coexist
Very good, although I didn't freak out at first sight....
Love the use of negative space to me this logo is perfect!
i like the idea of the letter J as an negative space, but i think the shape is kinda old-fashioned. and i also think that the type chosen for the "AJM Construtora" is too simple, it doesn't have personality.