I have some experience setting up automated OCR systems for one of the largest fintechs in Australia - and VLM based pipelines can definitely give an extra edge and this is easily a very large TAM market. However, existing players might also be upgrading their systems so might not be too easy to disrupt. That being said, credit analysis is also a very hard problem, but I am not sure how much quality OCR would help here.
Given what I know, I would focus on the VLM/OCR problem rather than the Credit scoring one.
Would love to share notes. I was able to get away with landing.ai and some really careful schema design and multi-step workflow with a few agents sprinkled in at the end.