You don't have to put it on the market. I don't really think you need to even use an attorney for this as I didn't when we bought a house from my ex-MIL. All we did was get a mortgage and a title company did the paperwork to transfer the title and put the mortgage liens etc. and this was in TX.
Are you getting a mortgage? If so they can likely recommend a title company to use as well, or you can ask friends who they've used. We've used many different ones over the years and I've not had any issues with any.
Please sit down with an experienced tax person and ask questions. You do not qualify for the first time homebuyers credit if you purchase a home from a related party.
Also, if your parents just deed the property to you, there may be gift tax returns that need to be filed.
You really need to sit down with an experienced tax professional. I'd suggest an enrolled agent who is generally less expensive than a tax attorney or CPA.
Remember not all attorneys or CPAs are knowledgable about taxes.