What would you do with this lead?

[Edward Beard]

I had a lead come in today where the value is in the land. I have yet to visit the property, but based on the owners comments its pretty much done for. The owner also mentioned that in the past he was in talks with a developer to purchase his lot and the lot adjacent to his.

The lot is approximately 4.5 acres, and it is off a pretty busy street with alot of development around it..

Two questions:

1.) How can I accurately assess the value of the land other than looking up the tax assessment.

2.) Is it possible to flip to a builder or developer? Is it as simple as picking up the phone a calling Ryan Homes?

As always, thanks in advance for responses.