For all I know, the next sentence is, "This would be a horrible injustice, and should never be implemented!"

The second sentence is the same issue, it's already the law, unnecessary, redundant and shows that the contract was not likely drafted by legal counsel.

Your targets are people all over the spectrum and each needs something different.What do you offer in your first sentence?

Notwithstanding the exclusion provided by clause (F) of the last sentence of this paragraph, the term includes any creditor who, in the process of collecting his own debts, uses any name other than his own which would indicate that a third person is collecting or attempting to collect such debts.

You mean mechanics and this sentence is just fine as it stands.

(Jeez, sorry for the long sentence there.)

If your bid for flooring & a new kitchen is just two sentences, the contractor is probably playing games.

Writing a brief sentence stating that someone was good to work with is a waste of everyone's time.

The first sentence basically says that you are the buyer, not going to wholesale or assign it. 

(This one sentence is the answer to David's question).