Makes total sense.
So his reply when I called a week ago was that the chicks were doing very well and he believes it was just that his wife squeezed them too hard when she clipped their wings and squeezed the contents of their crop up through their nose. But he was glad he took them back because the marans was actually a roo and he had another he could substitute. That was Friday and he said to call him Monday to plan to pick them up because he was being inspected for npip and would have the inspectors look over the birds one more time. I called and texted Monday thru Friday, as did my husband, with no answer. This evening he called my husband and left a message that they are ready to be picked up. I have already taken steps to purchase birds elsewhere. At this point I feel I can't rely on them and I'm not sure I feel I can trust his judgement of these birds. If he took them to a vet and I had proof they were healthy it may be a different story but there has been too many excuses and too many issues to deal with them anymore. I noticed on the other thread (beware of LFF) the police are now involved. I wish them luck. I sincerely hope they can pull it together and make this work for their families sake. Getting and keeping chickens shouldn't be this stressful!
I think at this point, getting birds from somewhere else is a wise decision.
It does sound like they are having issues, hopefully they will be able to get it corrected. Depending on exactly what they are dealing with, some illnesses can be eradicated, but unfortunately this most likely means starting over (cull all birds), do a cleaning, then build your stock back up, but that would be detrimental. I don't know how you would recover from a loss like that.
I hope your new birds do well for you -- this go round I do recommend that you quarantine them for at least 3weeks and practice bio-security between them and your existing flock.