First time wholesaler: How many properties to look at?

[Paul Duke]

How many properties do you recommend usually looking at before deciding your first property to wholesale? I've heard of the 100-10-3-1 rule by Kiyosaki but is that just for buy and holds?

Also, besides using the 70% rule for offer numbers, once you see a property how will you know if it's one that an investor will want if you're new and don't have a developed buyers list? I ask b/c I'm having a realtor show me properties that have been on the market for 3 or more months looking for a motivated seller. If it's been on the market that long, how do I know every investor in town hasn't already been through it and passed on the property?

Thanks!