Some of the things you mentioned are procedural mistakes from my understanding. Doesn't look good but not necessarily going to sink the case.
Some of the other issues really are going to depend on the facts of the case, such as searching the other rooms.
As far as Trump people were "making arrangements" I question this one. Doesn't seem like a lot of prep to call the FBI and tell them come pick the stuff up, but maybe I am missing something there.
So you think the other cases are easier to prove?
Yeah, there's never ever been a case in history that's been tossed out on the basis of "procedural mistakes," also known as technicalities.
Typically, these “technicalities” are constitutional protections guaranteed to all people in the United States. When the government fails to comply with the Constitution, and fails to afford people constitutional protections, evidence may be suppressed, and in some situations, cases are dismissed because of that suppression of evidence.
For example, search warrants have specific limits based on their purpose, If the FBI exceeded the scope of the warrant, the entire search can be deemed unlawful and any evidence found thrown out. That would qualify as "tanking the case."
So, tell us more about procedural mistakes and how it won't sink the case. Even if the biased judge and jury ignore the failures of the FBI and convict, those mistakes can easily be used to appeal the verdict not only based on the facts, but also to show how biased the entire court was against Trump.