They asked my acquisition criteria and I don't know what to tell them because I'm still in the research phase and I know they hate time wasters.Aside from LoopNet, should I just register with a select few commercial brokerages, such as CBRE, Marcus & Millichap, and Cushman Wakefield?

I can say that while these were terrible experiences, I am now a fully qualified plumber and electrician and much better at selecting tenants.

Regardless I would keep taking applications until you can select the most qualified applicant which ideally will not be this applicant.Set your screening standards high.

I also suggest selecting one area of real estate investing that picks your interest the most at this time and learning as much as possible about it before investing.

@Jason Howell I wish there were a way to select just a portion when you click the Quote button, but since there isn't, I'll just include here what you said above:Now I'm starting to have an immediate reaction when a deal might be ok or not at all.

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I spend about 3-4k monthly on a few select lists. 

He went on to mention that he raised the rents to just under $15 below market rate, and got the tenant to sign a 3 year lease if they would agree to allow a remodel (which he gave them a selection styles to pick from).Thus, he was able to significantly accelerate the asset stabilization process from the very beginning by increasing rents, remodeling, and getting new leases.What's your success, failure, or near casualty that you escaped? 

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Did you shop around for various quotes before selecting this lender?