Re: Help! -How to build a fence without digging ??
You don't say where you're located, if you're in the USA, call 1-800-dig-safe, this is a free service that will locate and mark ALL buried utilities. Once you know the location of things, then you can adjust post spacing to miss them. I have seen no suitable above ground fence post holder that will suffice for what you're asking for.
Also, if you're renting, contact the governing body for rental owners and talk to them about your options regarding a deadbeat landlord, especially if the fence, or lack thereof, poses a threat to health or safety.
I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!