For small businesses, the best choices are sole proprietorship or partnership. Partnership is chosen if more people are involved in the business. These structures make a good sense in the business when personal liability is not a big concern, for instance _ a small service business where you are not likely to be sued & for which you would not be borrowing much amount of money. The sole proprietorship and partnership both are comparatively easy & inexpensive to set up & maintain.
Using templates is always the easy route for frustrated and tired applicants. Copying and pasting is very tempting. After a few months they wonder why the employers never call back. Take time to write the perfect cover letter for the job you want. You'll find it to be more rewarding. Keep in mind that a cover letter is the first crucial step to being hired. Make a lasting good first impression with the employers.