Thinking of buying but before I put an offer, should I...

[Armando Arias Jr.]

Ok I have a lead on a single family. I've done comparables, research on the avg rent and some analysis on cost of repairs. Along with other calculations as far as analysis of deal. 

scenario: Buyers Agent sent me the lead. I think its viable. Agent asks me when do I want to walk the property.

question: do I search for and hire a contractor to walk the property with us so I have an accurate estimate of cost or should I wait for the due diligence phase of the deal?