No attorney needed, but mistakes can cause rejection.
What I Would Do
For a SaaS company:
Start with a USPTO trademark search.
If the name is clear, file 1 class (Class 42).
Budget around $350–$1,000 total.
Simple Answer
✅ Minimum cost: about $350 (government fee only)
✅ Most common real-world cost: $700–$1,200 total including an attorney/agent.