I currently am looking to learn every aspect of wholesaling so that I can build capital and benefit other investors along the way.

The wholesale business is an interesting aspect of real estate investment.

I currently have the ARVRehab costsHolding costs- taxes and insuranceAnd closing costs(maybe a realtor involved) Is there any other important aspect I am forgetting for a flip?

Though rather than just focusing on the monthly cash flow, it's crucial to take into account your actual return on investment.

All the different aspects and possibilities of REI can be quite overwhelming as I am quickly learning, but I am excited by the challenge.  

If they do allow rentals I probably wouldn't deal with it.The rehab of a mobile is slightly different than a house - it's usually not on a foundation and you're dealing with different materials, but overall there's a lot of similar aspects.  

Even a single-member LLC with no special election ("look through for tax purposes") will still remain - from a legal point of view - an legal entity in the form of an LLC.I don't know if this is confusing or not, but in a nutshell: one should always distinguish between the legal aspects and tax related aspects, especially when it comes to (legal) entities.Edit: ups, just realized that this thread is over a year old... oh well.

It does not require a large amount of effort on my part which allows me to focus my energy on the various aspects of Real estate investing.

To the point of your original post, it's been my experience that the value of having a license far outweighs the negative aspects.

Get a good real estate attorney to look over every aspect of the deal.