Recent changes to blackjack rules in San Juan casinos

#1
Does anyone knows what are the blackjack rules in San Juan casinos (Ambassador, Caribe Hilton, Condado, El San Juan, etc) I heard that the rules changed recently. For example, before you could only double down on 9, 10, and 11 (now I heard you can DD in any first two cards).

Dealer hit soft 17?
DAS alowed?
How may split allowed?
Surrender allowed?

Thank you
 
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