@menachem
That’s strange – you have an opinion about everything under the sun , and on mashiach min hameitim , not ?
I quote RAMBAN and RAMBAM .
RAMBAN is sefer havikuach [part of kitvei haramban mosad rav kuk helek 1, page 315-316], where he clearly states that j is proven not to be mashiach since he did not realize all the prophesies of tanach in his lifetime.
RAMBAM is hilch melachim perek 11 halaha 4 : “if mashiach succeeds, is victorious in battle over the nations and builds the beit hamikdash ,gathering all Jews to EY, then we know that he is mashiach . If, however he is not successful or he is killed , then we know for a fact that he is not the one which the torah was talking about.”
The late leader of habad was not successful in building the b’h nor in gathering the Jews to EY and did not realize the prophesies of tanach – hence we know that is not the one the torah was talking about.
[There are other reasons why the late leader of habad is disqualified, but the discussion here is about RAMBAM and RAMBAN.]
Daniel who according to one pshat in sanhedrin seems to be qualified as a candidate, never started the ge’ula process , never was proclaimed as mashiach, so never failed the test of kiyum nevu’ot hatanach.
If the rbsh’o will be mehayeh him and he will start the ge’ula and not fail the test of kiyum hanevu’ot hatanach, then he could fit the bill.
Simple.