Rye1,
I believe most states would allow a PE to perform basic surveying tasks (topo, staking, ...) in support of their own projects, just not any legal boundary work. Speaking from Illinois, this would be the case, however even with the obvious legal boundary restriction they further define that a PE could not hold ones self out to do just a pure topo survey if that is all the contract was for. You'll find similar restrictions with the overlap between SE vs PE work.
That being said, a FEMA Base Flood Elevation form requires either a PE or PLS certification. I've always passed that over to a PLS even when working on flood control projects that were clearly PE lead by construction and design costs. I can physically and technically do the level loop (3 wire for higher order control) to bring in a reference mark, but it seems to be a small savings for a tremendous amount of liability. I did routinely QC/QA of my office surveyor's work, closure errors, etc., and even helped run a total station topo crew in pinch but from a day to day perspective I'd leave that in their domain.
Sounds like you are out on your own? I'd try pairing up with a one-man shop PLS and you'd probably find good synergy with them passing on PE work back to you. Even if just by referral.
EEA