Company Name Question

[Max James]

Question. I am still young in my REI journey and have an idea for a company name. I want to get business cards created for networking and to hand out when I show my properties to prospective residents. I would also like to create a website with the company name and market with it/use for maintenance requests/etc. My question is, can I use this name if I don't have an LLC or any legal entities in place? What if someone else already has this name and I didn't find it on a Google search? Thanks!!