Can a seller of property accept cheque from buyer's mother ?

May I know the difference between terms and conditions for a website and privacy policy? I would like to draft both so I would like to know the difference and essentials.

I'm planning on drafting a Power of Attorney document to delegate some powers to an agent. May I know what kind of powers can be delegated and what should be the essentials of such a document?

I want to sell one of my properties and for the same, I have been asked to draft an agreement for sale and sale deed. Can I know the difference between these two documents and can they be similar to each other?

A dispute that I had with a company has been referred to arbitration. However, the arbitrator who has been appointed is a shareholder in the company. Is such an appointment illegal?

I need some clarity on trademarks as I want to register for my company. What is capable of being trademarked? Can it be only logos or can it be done for words also?