If you really feel like you need one use a fictitious last name, a lot of people use a fictitious first and last name. 

lol sounds like John is still suffering from a bad breakup. keep in mind the only difference between ARV estimates from a wholesaler and most investors would be access to information and there is really only one web site that requires access that's the MLS any other web sites with comp. info everyone has access to so in short having a wholesaler without a real estate licences is kind of like having an assistant or a bird dog and if you expect more than that out of them (which I think in john"s case may have happened) you will be bitter and disappointed.

I think everyone's reputation will be just fine if you close on accepted offers.A good reason for investors to get their licence.

I have licence to manage hazardous waste and I can drive a forklift.

As for paint, sherman williams said I need a actual contractor licence to get there discounts.

Let me paint a fictitious story for you to illustrate what I'm trying to ask. 10 years ago, I buy a property for 80k cash that rents for 1200/month.

Full time job, drivers licence, good credit score, savings.

You may want to consider talking to your broker about yours and their liability if you are involved with wholesaling as a licenced agent.

I've been loaning businesses rehab funds for their projects and was wondering if my business activity requires a licence in Oregon state. 

Let us know how we can help I also am a licence realtor here.