How many times can you take the LSAT in a 3 year period?
To be brief, the answer is "unlimited" or technically "limited only by how many tests there will administered in a three year period" and has been since September of 2017. Before then there was a limiting number, and there is still a good deal of bad information out there about that old policy, hence this incredibly brief blog.
Again, there is no longer a policy limiting takes, and you can take it and keep taking it.
Whether you should is a bit more nuanced. But please please do not feel limited by any LSAC rule. There is none. And, by and large, law schools will always default to the highest score – the only score that goes to USNWR for rankings consideration.