Unfortunately, all topsoil (unless bagged) is full of millions of weed seeds. To answer the question, about everything. About all I do, is depend on quinclorac. It takes periodic aps, but is necessary. Of course now, at this time of year, it's not so bad. The grass will grow and harden off, so the results in this short seeding time will be the same as those we meticulously labored over all summer long for new growth (yeah, I put a lawn in in June lol).
Thank you, Dad - for always being the dad that you were. You truly are my hero. You always were.