I believe Bigfish is asking where can he find casinos that offer surrender.
Bigfish, only late surrender is available in the US to my knowledge and can be found in Biloxi, Delaware and PA casinos generally that I recall. Surrender is particularly useful to counters.
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I know Treasure Island allows surrender, and a few others on the strip (in vegas that is) just ask, some of the higher limits will when the lower limits won't