Can I sue Lennar for promising me a lot over the past few months and then changing their position to my being able to "bid" on the lot and house?

In February my wife and I wanted to buy a lot and build a house Lakewood National. We identified a lot to the Lennar salesman but it hadn't been "released" yet. That was supposed to happen at the beginning of March. As interest emerged on all of the final "estate" lots the salesforce, including the sales manager got together and agreed that they would reserve lots, that when released, would be based on first right of refusal. We were identified as having first right of refusal on lot 437. So we completely stopped our house search and also rented a house in Lakewood National for a year while the house was to be built. The March release did not happen, nor the April or May. Throughout the spring we were assured by our salesperson not to worry, that when the lots were released 437 was ours and that the construction delivery schedule had not been affected (I have text messages substantiating those statements). Two weeks ago we were notified that Lennar had changed to a bid process.