First adoption started in 2014 and ended up failing in 2015.
2 nd adoption started in 2015 and failed in 2016.

Are we able to claim both the failed adoptions?
We claimed the first failed one last year because it failed in 2015 so we had to wait a year.
The second failed one was finalized as fail in 2016 so can I claim that one on this years taxes?
I'm being told 2 different things.
First being you can only claim the credit once doesn't matter how many you have failed and I've also been told that because there different years I can claim them separately.

Any clarification on this would be much appreciated.