Can a block have multiple coinbase transactions? Also is there a limit to the number of signatures a multi-sig transaction has or requires? I am wondering if a block can be created with multiple coinbase transactions. The US government regulates mining pools that have control over the miner's wallets, so it would be fabulous if this could be circumvented by having multiple coinbase transactions to multi-sig wallets. Also is there a limit to the number of signatures that a multi-sig wallet can require?
A block can only have one coinbase transaction. You could however send the reward+fees of the coinbase transaction to multiple addresses (of any type) just like any other transaction. 


  is there a limit to the number of signatures that a multi-sig wallet can require?  


https://bitcoin.stackexchange.com/a/28092/87716