I will need UK solicitor to provide a letter on letterheads

For this job, I will need a UK solicitor to do a bit of research on two topics and provide a simple letter on letterheads with signature:
1) UK anti-money laundering law (we need name of law and clause numbers) relating to checks on foreign shareholders' international funds transfer to UK business account and share funds transfer using other people's name .
2) according to UK company law or/and contract law, for two 50/50 shareholders, if one of them intend to transfer shares to a third party, his liability to notify the other major shareholder.
One job is agreed, we can conduct a conference call to make sure everything is covered and understood. Job is urgent, will need final documents in 3 days' time.