Lashon Hara about a Yeshiva

Shalom, I wanted to ask: may I speak with a girl in a shidduch context about certain yeshivot and describe that the boys there are on a low level, in order to explain to her why it is not advisable to accept proposals from there?
a. Is it permitted to exaggerate in the description so that she will be more likely to accept what I say?
b. Is it permitted to speak in a generalizing way, or must one each time emphasize that there may be exceptions?
c. Is there a problem saying these things when they are also heard by people for whom there is no practical consequence, or, since these things are in any case public knowledge in the yeshiva world, is it permitted?

Shalom u’vracha,

a. It is forbidden to exaggerate; you may say only the truth.

b. It is forbidden to make sweeping generalizations; you must state the truth, namely that this is a yeshiva where, generally speaking, the level is less strong.

c. It is forbidden. This is outright lashon hara, and it is permitted only when there is a constructive purpose. For the general listeners there is no such benefit.

Once one formulates things accurately, it becomes clear that it is quite possible to find boys on an excellent level even in a yeshiva whose general level is low, and there is in fact no reason to persuade her not to consider all the boys from that yeshiva. Consequently, one may say only: “One should check carefully in yeshivot of this type whether the level of the particular boy suits you.”

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