I've put adds on Craigslist a few times. I don't get nearly 100 replies. Usually 4 or 5 every time I post. Usually 3 or 4 of them are no-go's though. One told me they would let me put bees on their property if I gave them purple kutzu honey. When I dug a little more, there was about a 1 acre kutzu patch across the street. I passed. Another had 10 acers of hay, and wanted 50% of the honey I pulled off the hives for putting them there. I passed again. Most of the other offers I got were too far for me to make any use of them, but otherwise seemed fine.
I typically post an ad in the fall. Those that respond they have a spot, easy truck access, and I can visit whenever I want, I come take a look. Assuming they look fine, I tell them I'll be back in the spring. If they are still alright with me bringing bees in the spring, I take 2 hives out there for the first year. No damage, decent crop, good access in the first year, I'll increase to 6 hives the second year. Then see where things go. If the owner's a pain (rare), location doesn't do well, pesticide kills or other issues, I move them out.