How do you assess your contractors?

[Jason Mak]

Wanted to hear from other investors and developers on how they assess contractors and bids prior to awarding work.  Things I do include:

- Job walk with them to gauge compatibility, sincerity, aptitude

- call references (what do you ask their references?)

- Ask them about their current and future jobs to see how busy they are and if they have time for my job.  

- Ask about warranties

What else do you guys pay attention to?