I want to offer a lawn renovation to a new client of mine. I know he would be interested if and when I offer the service to him. His lawn is patchy and bare. Suprisingly, he doesn't really have any real weed problems. In the past I think he used Chem Lawn (which probably burned it and killed it in the first place) and therefore, I get to be the first to try to build some life in his soil. I put down corn gluten meal three and half weeks ago and it should be wearing off in a few weeks. My schedule will free up some time in the middle of May which is when I want to start work. I want to salvage what he has and topdress with compost and overseed with a sunny grass seed mix. Obviously I have several questions before I start and I know you guys can provide some valuable input. 1. How long do I have to wait to seed after using cgm? 2. Is it too late to seed if it's late May? ( The location is Lancaster Pennsylvania) ...Should I wait until the Fall? 3. I'm thinking about spraying compost tea when I'm done. Should I do this immediately afterward or should I wait until later in the season to do that? (I can fit it in the budget so that shouldn't be an issue) 4.What type of seed would be best to use? Should it be a mix or a straight species? (The area is in full sun) ...Of course I have more questions but I don't want to overload anyone. I really want this place to look great by the end of the year so any valuable tips and input are greatly appreciated.