The list is endless...

There is no problems.

You manage the situation. Meet your duties. That is what you were hired to do.

If NO ONE has hired you, still no problem. You have no role in the transaction and should refrain from injecting ANY professional guidance.

If the professional involved is screw-up, has little experience, has no experience working with both the buyer and seller side, the problems that exist are countless.

However, the laws of your state may have a different point of view.

I agree with Maria Sapio 

I don't represent unrepresented customers.

The answer to your question would require a lot of time...

Getting paid

Maria Sapio nailed this one!

Too many to list.

They jump ship

I don't deal with unrepresented customers.

If I had a unrepentant customer, I would kick them to the curb.

 None.

you're walking on thin ice when you deal with a person who has no representation....

I do not walk or work in landmines.  I echo what Nina Hollander in her comment and comments to comments. The lines are made very clear. 

There's enough potential issues to write an entire post about

Michael DeVico As long as the customer understands exactly what unrepresented means and is provided full disclosure, there shouldn't be any problems. I will venture to say once they fully understand what it means to be unrepresented, they will sign an Agency agreement and go with full representation.

Interesting question...an unrepresented customer may wish they had representation along the way or when it is all said and done. Best to do it on the front end.

One major issue would be disputes as to the procuring cause.

They will use you and abuse you and spit you out the other side.

The problem might be in thinking to much about problems like this.

You do all the work and probably won't get paid, but then again that would be my fault for not having them sign a buyer representation agreement... so bottom line, I wouldn't take any one out without representation.

Wanting advice, when you cannot give it.

Michael DeVico - God gave us only 10 fingers - and perhaps we can count up to 30 on both hands.

That may not be sufficient to count the problems which we may run into...

Michael - Well, you might end up having to do all the work and then end up not getting paid if the transaction does not close.

Not getting paid along with a host of other issues.

A lot can be written about this. You have to be very careful in this situation. Often the unrepresented person will feel like you are their agent. Full disclosure stating you aren't needs to be given to that person. 

there is so much that you could not list them all

There are too many to list here.  Unrepresented clients are headaches waiting to happen.

You mean the client who represent himself? I never had such experience, here in SoCal the housing prices are so high, only lawyers and RE licensees represent themselves. 

Go on WebMD and try to self-diagnose a medical issue.  Same thing happens in real estate.

You try to make him/her your customer - and they he/she has representation!

None. Agency disclosure is required in NY state. I must represent either buyer or seller or dual. However, I can represent either buyer or seller and deal with unrepresented customer.

As a seller's agent I do not represent the interest of the buyer. In dealings with buyer customers as a seller's agent I (a) exercise reasonable skill and care in performance of my agent's duties, (b) deal honestly, fairly and in good faith; and (c) disclose all facts known to me materially affecting the value or desirability of property.

Buyer signs NY agency disclosure form acknowledging I am a seller's agent and represent interest of seller.

As a buyer's agent I represent the interest of the buyer. In dealings with a seller customer (unrepresented aka FSBO) I (a) exercise reasonable skill and care in performance of my agent's duties; (b) deal honestly, fairly and in good faith; and (c) disclose all facts known to me materially affecting the buyer's ability and/or willingness to perform a contract to acquire seller's property that are not inconsistent with my fiduciary duties to the buyer.

Seller signs NY agency disclosure form acknowledging I am buyer's agent and represent the buyer's interests.

Real estate is local and local laws apply.

A waste of time and no compensation!

Implied agency.

Unorganized, distrustful, ignorant to the proper process, unnecessary conflicts.

Most likely will not get paid if they do buy up to breaking the law if you did not have them sign the agency disclosure forms. 

Oh, what Maria Sapio said!

just do the right thing