2: I don't know about this company, but it is definitely not small.
3. No development. Yours is an office worker, a radish and a pit. Your brother-in-law can only be in charge when he comes down, unless you are in the field and doing business, but the business is unstable.
As long as there is nothing wrong with you, as long as this company exists, you will not be in danger of being fired. Unless the company's business operation shrinks, resulting in the cancellation of branches around the company, then you have no job.