Multi Family/Multi Structure 10 total units - commercial or conventional financing?

[Josh Roman]

Long Time reader, first time poster...here goes.

Investor looking at a deal in Oklahoma near our other properties. Property is one parcel with 6 permitted structures on it, 4 duplexes and 2 SFH, total 10 units. Commercial Team at our bank says it's not eligible for commercial financing, conventional team saying it's more than 4 units, and does not qualify

Two questions:

1.) What category does this fall under for financing?

2.) Current owner asking for one closing, with all properties, but perhaps they are mistaken and this is not possible?

First time I've seen this, so any help much appreciated!

Thanks