What is best approach to secure land for development?

[Terrance Merck]

Recently i mailed an out of state owner a letter asking to buy land. Theycalled me back and imformed me that they are interested in sellimg land but was waiting to hear back from hisrealtor  before they were able to discuss possible numbers. He informed me that due to recent popularity of area that others have shown interest. The land 19 acres recently zoned for commercial and residential development. The land is not far from major interstate exit (I85). What is the best way to proceed in order to secure land? I am expecting to talk with land owner sometime this week. I am looking to  do single and multifamily development. I currently have access to 4 acres of land next to this  19. Any and all suggestions and advice are welcome.