The only thing you really need to know for now is that you can only deduct property taxes and mortgage interest (if there is a mortgage) beginning on the date you owned the home. For example, if you live in a state where property taxes are paid in arrears, you might get a bill in January 2023 that covers the 2022 tax year. Even if you pay the entire property tax bill, you can only deduct the portion that corresponds to the number of days you owned the home in 2022.
You also need to document the prior owners adjusted cost basis. This is whatever they paid for the home, plus the cost of any permanent improvements, like a new roof, furnace, remodeling, and so on. (Minor repairs don't count.) When you sell the home, the capital gains tax you might owe will depend on being able to prove the cost basis, so don't be shy about asking for copies of documents and bills for improvements.
In turbotax, it's fine to say you bought a home, just report whatever deductible items you have (probably only property tax) and leave the rest zero or blank (mortgage, closing costs, etc.). You don't actually report the acquisition of a home on any tax return, Turbotax just asks so it knows to ask you certain questions instead of making you look for them.
