Hi friend.. I hope that you already have some basic knowledge about Ethereum and smart contracts. And basically you can use the multisig wallet to do anything an individual account can do.
Well, You can also implement your own Multisig Wallet if you really good at solidity and have enough confidence. In any case, you need to test and read the smart contracts to understand the implementation carefully before deploying things do. Firstly, recommend the Integration with web3 wallets (Metamask, Mist, or Ledger wallet) and I did not recommend to use Parity, so never had a problem
By ConsenSys lets doing by check...
BitGo, One of the advantages of this wallet is ERC20-Token compatibility, owner (you) can use defined function to transfer token easier than the other wallets.
By BitGo Lets doing by check...
And you see Compiled Source Code Verified with Gnosis check-out etherscan
OR the beginning lets check on GitHub
Be careful, coz it was a risk. don't any take to by step wrong. Good luck