Let us assume a case as follows:
You buy a land or a building from a third person and the contract or document of registration work is to be done; do you write the document of registration by your own or you seek a professional’s hand?
This is the same scenario on drafting a patent specification. Though an inventor knows the essential points and is pin tipped with all the functionalities of his / her invention or innovation, a patent specification is usually called a techno-legal draft, where the content of technicality is represented in the legal language.
Though filing a patent with you own words is a cheaper solution, when it comes to the future stages of the patent such as examination and opposition, and when the queries or subject in competition is with a stronger hand of legal power at that moment hiring an attorney will be extra-ordinarily himalayan cost and the other issue is that any left competence of the innovation on a specification, after filing cannot be added or remodified or changed.
This it is advisable to decide on the purpose of patenting an invention and the extent to which the draft is stronger in a prospective buyer of the patent.