Disclaimer: Donation is exchanged for legal adult personal services such as modeling, escorting or massages and are simply for time, companionship, and related stated service. Anything else that may or may not occur is a matter of personal choice and personal preferences between two or more consenting adults of legal age and is not contracted for, nor is it requested to be contracted for in any manner. This is NOT an offer of or for prostitution. Donations are for the time spent only. I do reserve the right to decline appointments and individuals as I deem necessary. By contacting me either through phone you agree to this contract and these terms and hereby acknowledge that you are not part of any law enforcement agency using this advertisement for entrapment or for arrest
Do these actually stop LE from contacting you..im in ohio..any one know?

Definitely no.  Legally, disclaimers are not worth the paper (or html) that they are written on.

Well, it does NOT prevent LE from responding to you ad.
It might help in some jurisdictions where an over zealous prosecutor might try to build a case solely on the contennts of the ad.  In reality, LE does not rely on the ads or bother with the disclaimer.  What matters is what happens face to face.  
If sex for money is discussed in a jurisdictioin where it is illegal, in the presence of LE, that act supercedes any & all disclaimers.  In most jurisdictions prostitution is a misdemeanor & must be witnessed by LE (unless they can get you to confess to it, STFU).  
While disclaimers are not hugely benificial, they do no harm & might just prevent prosecutorial abuse.  Screening, proper techniques, are useful to reduce the other, nore prevalent risks.
skb

The police will find a reason to arrest you if they want to, so I'm not sure if disclaimers will help at all.  Whether charges stick based of the evidence is another thing altogether. That is why I never discuss sex in email, texts or phone calls or even in person.  When I get to the incall I place the contents of everything in my pockets on a table/counter/dresser which includes the envelope..  That way if it happens to be a cop or a provider who sold out to LE I can easily tell them that is just my money I withdrew that day and have a withdraw receipt.  I often ask for a nude strip tease, too.  No officer is going to toss off all of her clothes to bag a john, and if she asks for cash to do it I would politely decline, state that there's been some sort of misunderstanding and leave.  I've never had to do that, so I wonder if I'd leave any cash behind so that my alibi that the money was mine all along stays in tact.  Sure, they can try to press charges but the lack of any real evidence will get them tossed or make it easy to fight.  Either way it would suck because your name goes in the paper for solicitation of prostitution, even if there was no talk about sex for money.

"While disclaimers are not hugely benificial, they do no harm & might just prevent prosecutorial abuse."
                         -- anonymousbastard

I don't think so. Disclaimers in Cali (and probably in most states), such  as the one OP posted, are considered by LE circumstantial evidence of your intent to engage in sex formoney. Most escorts might think it protects them -- If so, it's just naive, a wishful thought they wished were true.

Here's what LE thinks of disclaimers (click on the link I included with this post). Hope you learn something.