Can good deals be found on listing sites?

[Don Konipol]

Can below market commercial real estate buys be found on listing sites (Loopnet, Commercial Alliance, etc.) or can these below market deals only be found by private sources (private referral, probate, etc)?

And if they can be found on listing sites, will they be recognizable as good buys, or will it take much negotiating and information hunting to recognize them?

Where have you found your best (most profitable) real estate investments?