be expected from vs. be expected by

Solution 1:

Sentence 1 means that ABC bank are providing the money for the company's third loan payment (the payment is expected from the bank, therefore the bank has the payment and should be putting it somewhere).

Sentence 2 means that ABC bank is expecting to receive the company's third loan payment (presumably ABC bank either hold the loan or are responsible for making sure that the loan payment arrives with the lender in good time).

Sentence 3 means that the company is expected to provide the third loan payment but does not say to whom they are providing it. If additional context makes it clear that ABC are expecting to receive the loan payment then sentences 2 and 3 are near-equivalent, yes.

I'm not sure why you've tagged this "ambiguity" though as none of the sentences are ambiguous.