A few questions about duplex new construction.

[Adrian Wooten]

So after 2 years my quiet title action is complete and I am prepared to build. I have a few questions to ask as far as the steps needed to complete:

Before I begin interviewing builders, is there anything I should be doing on my own first? (surveys/ect)

How am I to estimate build cost to provide that info to lenders? 

Lastly, what are somethings that I should look out for that you didn't know before you started?

Any information provided will be very appreciated.