We can assist with UK Visa applications which are fully regulated by the solicitors regulatory authority back in the UK we are if not the only one of the Visa agents in Thailand that are fully SRA regulated. We have a 100% track record for visitor Visas over the past four years.
Our dedicated Immigration Director has 17 years experience and I am the firms client affairs manager here in Thailand. I am a practising British and international lawyer backed up by in-house Thai lawyers, barristers and accountant and consultants if we can assist it anyway please let us know. I hope this helps 1 and all 
We are operating nationwide in Thailand, I am the client affairs manager and a practising British and international Lawyer backed up by a full in House team of Thai Lawyers barristers and accountants if we can assist in anyway please let me know.
We have been processing and supplying documentation for visas for overseas clients since 2007 
I suppose that depends on the circumstances if you’re employment is finishing on the same date as your work permit then you must leave the country immediately and both you and your employer must inform the Labour department and Immigration, if your employment is being extended you renew your work permit for one or two years and then reapply for your extension of stay based on a non b Visa
Two scenarios, two different answers I hope this assists
PS on the cancellation of your work permit some immigration officers may extend your stay for seven days to put your affairs in order. Some won’t the rules are you must leave within 24 hours subject to permission from Immigration. 
So much misinformation there are legal and legitimate contracts for this. Whilst nominees are illegal. Agents contracts between Thai are completely lawful depending on the company set up.
For legal advice and assistance, I suggest you contact the following who have been assisting overseas nationals since 2007 with smatters
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The British client affairs manager and practising Lawyer together with his in-house team of Thai lawyers bargers and consultants and accountants will guide you through the process legitimately and legally
yes, it would always be advisable when you have a foreign interest to always register yourself as a Director however, where you do not and you are an employee that would also entitle you to Social Security and medical benefits however, my recommendation would always be to secure your investment and control with registering the overseas party as a Director