Not at all. Forming a Thai registered company can be established in the ‘blink of an eye’. Make sure that you use a capable solicitor or administration office with the knowledge of all procedures involved. It will become handy if the formation of your Thai company is done by a party that is also able to process the required annual audit report of your company.
Keep all of your company documents on a safe place within reach if you need them. If there are any properties owned by your company you might consider registering a separate company for each one of them.
In the event that you ever want to sell your property you might as well transfer the shares of your holding company into the buyers’ name which saves you a reasonable amount of land transfer taxes.