It depends on what you want the trust to do. If it's just for Form 1/4 NFA stuff, a $130 trust from the Silencer Shop is all you need. I'd only get a lawyer involved (if you like burning money) if the trust becomes very, very complicated...more than 1 Trustee(s), or more than 1 benefactor(s). 97% of what a lawyer will do for you is just boiler plate wording.
My trust is incredibly simple. Basically I, the trustee, own the property listed in Schedule A, and it will all go to person 1 (beneficiary). If person 1 is dead, it goes to person 2, etc. I used a generic DIY trust software, just fill-in-the-blank stuff, but had a lawyer friend give it a once over...he changed one sentence. I've used it with zero issues on more than 2 dozen NFA items.
How is a trust going to land you in jail? It's just a list of property, owned by a person(s), with a list of people who the property will go to once the trustee(s) die. It's a simple legal instrument that many people overthink when it comes to NFA items.
Back in the day, before all the 41F/P new rules, a Trust was a simple way to bypass a lot of the NFA regulations, and made the process much faster/easier. Plus, on any Form 1 item, you have to engrave your name and city/state on the firearm...and :JOHN JACOB JINGLEHEIMER-SCHMIDT, FLAGSTAFF AZ" takes up a lot of room on a gun, and looks horrible. So, many people have simple trust names, like "JJJS Trust, Flagstaff AZ" which is easily hidden on a gun.