I do not recommend planting grass seed before the September-October window. The Ohio Valley, which is actually the Ohio River Valley, attracts weather systems. It's a preferred weather track for storms, especially. Meteorologists say moist Ohio River Valley air creates hot, sticky weather (such as the 90 degree temperatures we get in July and August). The best type of seed for your lawn depends on soil pH and temperature, also if all areas are in direct sunlight. I prefer Kentucky bluegrass for just about everything because it is so hardy, but, before you invest in the time an expense of resodding, have the soil tested to see what would grow best (contact your local extension service). Fescues may be an option (but do not mix the two). Some strains take more time and effort to maintain than others. In any case, gather your info now so you'll be ready to seed in the fall.