Re 1: What’s hard to interpret here for you?
Re 2: “Will” follows “If” in such a conditional sentence when the situation referred to in the conditional clause (protasis) temporally follows the situation referred to in the consequent clause (apodosis). Mind you, it’s the temporal sequence of situations rather than clauses in a sentence that is reversed.
Another example of the same consequence-before-condition sequence of events:
(He is a scoundrel and I don’t like him, and) if it will bankrupt him (which will certainly happen, or may happen, or may not happen…), I will cut him out of my will (=disinherit him), so that justice will/may/might… finally have prevailed.