My business partner/mentor has relationships with subcontractors that we have used on all of the projects we've been involved in.

Their customer service was fantastic and it was the only time I felt I had a true relationship with my bank.  

And especially when you start a relationship.

If the sell side was first, there would be no guarantee of getting the buy side unless the client was someone I had a relationship with. 

Whatever the space, you need to make sure it aligns with your strategy, your plan, offers a hands free transparent relationship,that is going to be long-term and mutually beneficial.

As you are concerned on the stability of the industry workers (quite valid) and of the relationship,  offer a short term (3 or 6) month lease holding over with m/m.

I'm aware that I'll have to build relationships with REO agents.

I'm anticipating that the first deal will have the greatest learning curve, but ultimately my goal is to develop relationships with contractors and come up with a process to make flipping as efficient as possible.  

If you pay on time during the life of the loan and establish a solid relationship with your bank, they will work with you.Considering current conditions - you were approved by the bank, so it either means the property is a cash flowing property, or your a very strong borrower/guarantor, or both. 

You might have a good chance if you have a good relationship with them.