Re: Sentence in business letter.
Sorry, but it does not sound natural. The best, most effective, communication is always the most straightforward. Never use a long, complicated word when a short, simple one is available. I would write the sentences thus.
Originally Posted by saloom2
"I am writing about your plan to replace our beautiful garden with a car park. Most of the householders affected do not agree with it."
I'm not sure what you mean by a formal word to form a pause in written English. If you mean something like "Well, thank you for your assistance", I would say that you do not need to insert anything. If you feel you must, then something like "Finally" will do.
I'm not a teacher of English, but I have spoken it for (almost) all of my life....