You probably don't fully realize what it takes to startup and run a company (any kind, not only academic research service). Below, I list only some points that are necessary to be successful running an essay service online:

- Legal Entity - you must set up a formal corporation / LLC in a chosen country / state / region. It is possible to set up a company online; it may be best (from tax point of view) to choose a country / state that doesn't have much federal and local taxes.

- Payment Systems - you should offer your customers to pay online. The cheapest / easiest choice would be 3rd-party payments, including Paypal. Accepting payment cards online will require a merchant account (which is not easy to set up, unless you have enough positive financial history).

- Accounting / Payroll - ALL transactions, big or small, must be entered in an accounting system. A professional accountant is usually required.

- Website Development - at first it may seem easy until you want customization. The cheapest options would be ready-made systems based on popular platforms like Wordpress, but the negatives are plenty: lack of security, constant maintenance / management.

- Marketing / Advertising - without it, your efforts will go nowhere. It's easy to say - "let's make buzz on social media" or "put some flyers near your college campus" - but the outcome is pretty much always the same .. a lot of time spent with little positive results. It might be fastest to just pay for advertising, but do you have hundreds of dollars a month to spend (and keep controlling / managing the expenditures)? Probably not.

Overall, the idea is nice, but it's going to take much more time and effort to become successful.