The answer is: it depends. If you expect the addressee for the CC may have a strong interest in the original letter, or anticipate a action/reaction, then by all means write a cover letter (or letter of transmittal) to the CC addressee. Sometimes you want to make that CC person feel more important. A cover letter is a very nice way of expressing you care about that person's interest in the matter. It is the opposite of a dismissal.
A business letter should be concise and to the point; there is seldom a need for a business letter to be two pages. When there is too much wording to a business letter, the point of the letter can be unclear or camouflaged. A sales letter, a resume cover letter (which is a sales letter), a product, a pricing, or contract inquiry or request, etc. that have many specifications to include should have those specifications or product information on an attachment to the letter, such as the resume, a product or contract specification sheet and with only highlights of the attachment(s) included in the body of a letter. A business letter that is word dense is much less effective than a letter containing just enough to direct the mind of the recipient to the result that is the intent of the letter.
Letter
The first paragraph of a business letter should state why you are writing. The middle paragraph of a business letter should state the facts or information supporting that purpose. The information should be presented in a logical order, avoiding anything that is not directed at accomplishing the goal of the letter. A letter of complaint should avoid accusations and threats. A cover letter for a resume need only highlight a few pertinent facts, your attached resume will tell the rest. The last paragraph should provide the information necessary for the recipient to act on your inquiry or request; any relevant dates, your contact information, etc. If the letter is providing information only, your need only to thank the recipient for their time and attention. All business letters should end with a thank you for the recipient's time and effort.
The optional parts of a business letter are only important if they are applicable. For example, a reference line would not be necessary for all business letters and serve no purpose unless there was something specific to reference. If the letter is sent to the recipient only, there would be no need to use the "cc" reference; or if nothing is included with the letter, the "encl." notation would be of no importance. If any of the optional parts of a business letter are applicable, then they are important to use.
it is advantageous because you need not to worry about the indention of the parts
It is important to sign a cc letter. That is because the recipients still need to know whether the source of the letter is authentic.
The grant for a car wash will need several sections. A cover letter, statement, goals, and business model all need to be spelled out to have the best chance of getting the grant.
No, it is not necessary to include your address in a cover letter.
No, it is not necessary to include your address on a cover letter.
No, it is not necessary to include your address on an online cover letter.
No, it is not necessary to physically sign a cover letter when submitting it electronically. Your typed name at the end of the cover letter is sufficient.
No, but you do indent in a friendly letter.
In order to send a letter you need to write the recipients full postal address on the back of the envelope. The stamp is placed on the top right hand corner on the back of the envelope.
Yes, a cover letter should include both your address and the address of the recipient, typically placed at the top of the letter.
Yes, you will need insurance coverage. In most instances, your business insurance will cover equipment leases.
A business letter is to communicate business matters; none of the business letter is a personal letter. Even if you know the person the letter is for very well, keep a business letter on a business basis. If you wish to communicate with the person on a personal level, add a separate note with the letter. The recipient of a business letter may need to pass your letter on to someone else to be acted upon but can keep your personal note.
No, there is a business exclusion under the liability section. You personal homeowners insurance will not cover your Commercial activities. You will need a Commercial General Liability policy to cover your business operations.