Most individuals don't hire lawyers for their individual income tax filings in the U.S., but most large businesses do.
A lot of individuals do hire tax accountants who help them prepare their tax filings (and can advise them about their eligibility for certain tax benefits and statuses, including how to characterize certain income and expenses). Tax accountants are generally not lawyers, but have expertise about the tax system. However, I think this is only common for people who are wealthy, self-employed, own a house, own a business, or have some complication like having income in or living partly in multiple countries. I don't think it's very common for people who rent their homes and have only employment income from working for others.
A lot of individuals do hire tax accountants who help them prepare their tax filings (and can advise them about their eligibility for certain tax benefits and statuses, including how to characterize certain income and expenses). Tax accountants are generally not lawyers, but have expertise about the tax system. However, I think this is only common for people who are wealthy, self-employed, own a house, own a business, or have some complication like having income in or living partly in multiple countries. I don't think it's very common for people who rent their homes and have only employment income from working for others.