Tiara,
I highly recommend you getting your real estate license.
As Carey indicated the disclosure is such a non-issue. I actually believe that it's more of a benefit than a drawback in that other RE agents give more credence to licensed investors than non-licensed investors.
Benefits:
Access to the MLS for listings and comps. You get to see the deals before your competitors.
I see a lot of deals from REIs that don't have access to MLS and they are relying on either the seller's representation of value (big mistake), online comp services (e.g. Zillow, Truilia), which I think are inaccurate (typically overstate values), tax values, etc. Understanding the current/after repaired value of a property is a critical factor in your success as an investor. Why investors rely on 3rd parties (who often have a financial stake in the deal) to provide them with this critical information, baffles me.
Sell your properties and only pay the selling broker's commission. You can either pocket the difference, offer incentives to the buyer, or offer a higher commission to the selling broker with "your side" of the commission.
Drawbacks:
Time/money spent acquiring/maintaining your license. The licensing course is extremely boring.
You are held to a higher professional standard than non-licensed investors. (I actually think this is more of a benefit than a liability, but a lot of investors view this as a drawback)
I