At that point my project manager (and partner) started pushing him. 

Are your projects at about completion? 

And the cracks mostly follow the drywall seams from what I can see, which is typical....And as @Patricia Steiner said, it doesn't look like a pro installation....You could ask the Contr to use a flexible compound if this happens again, or maybe even now...https://www.dap.com/products-projects/product-categories/pat...Like everyone else said, I'd have it repaired - by a licensed Drywall Contr. - and then just check in on it.

Then it likely takes hiring a GC to manage the project.  

I'm in Spartanburg and starting some new construction projects.

Sounds like an interesting project but I am sure there is more to the story.

Here's her most recent thought on the matter if it helps: "Lack of inspection during building by project managers [is the problem].

We develop and consult new developers through the full cycle of development.Financing differs from project to project based on your equity, land cost, construction methods, etc.

I do not judge anyone that sees a high projected return and becomes interested.  

If you go with the partnership route1) You need to manage the money going in and out of the business bank account.2) File a partnership return and be responsible for issuing K-1's3) make distributions to you and your partner for cash flow that you receiveYou will likely spend many hours on a nice gesture.I may want to consider instead to give a christmas gift or a bonus for early completion of projects.