Unless you signed something differently, I think loans are sold all the time.
We could hardly finish signing our refinance loan and it was sold to someone.
And they were calling us, begging us to refinance at the new lower rate.
I have all kinds of services watching my credit rating.
A certain large bank wanted us to refinance our loan at a better rate.
They dragged their feet forever. To the point of annoying!
Finally, they figured it out.
2 weeks later, I get an email, on my credit information, that they sold it to someone else.
so far as I know, they can do that.