Do your soil tests get county agent out, to give you the thoughts, as to what to do but you will need a variety of grasses, different grasses do better in some places, more so than others. Bermuda, Dallas, clover, and many others. Be sure you have a variety. Fescue is a great grass to plant if you are going to not rush the cows on the place, but all grasses will need to establish a root base, so that when you put them on it, the grasses aren't so small, that the cows will pull root up with it. Please use your County agent, and or others who have ben in the business for a while. Plant some Fescue this year just to get a good start with it, and maybe it will have seeded out long before the cows are on it.
tryinhard