Let me rephrase this - your signature on the P&S comes with responsibility to perform,  which is a function of closing on the purchase if need be, even if that is not your primary intention...Where I have an issue, is all of the wholesaler running around, loading contracts with out clauses, without any intention to perform as per their signature should they be unable to find a retailer...this is unethical indeed!  

I'm wondering how I should do my signature on emails.

For whatever reason they were not really "ready" to sell then - but they liked our letters enough that they saved them and are calling me now.My tip; 2 pages. 1st is cover letter, personalized to the seller with information about you and a signature. 2nd page is a purchase agreement, again personalized with a cash dollar amount and an expiration date.

The last sister I got a signature from had all my letters when I got there.

As you know, getting conventional bank financing, while cheaper usually, requires long wait periods, 12,000 trees destroyed to make the paper to create all the forms, your signature on all 150,000 bank lending forms, your first born son, etc.

By his/her signature herein below, Seller’s specifically agrees to the provision stated in this paragraph: (1) Buyer may cancel this contract, (2) Buyer may insist upon the specific performance of the Seller under this contract, or (3) Buyer shall be entitled to receive from Seller a total sum of $50,000 or 25 percent of the contractual price, whichever one is greater.___________________________________________________ SellerDate ___________________________________________________ SellerDate XXXV.DEFAULT BY BUYER: In the event Buyer should fail to consummate the transaction contemplated herein for any reason, except default by Seller or the failure of Seller to satisfy any of the conditions to Buyer's obligations, as set forth herein, Seller shall be entitled to retain the earnest money deposit, such sum being agreed upon as liquidated damages for the failure of Buyer to perform the duties and obligations imposed upon it by the terms and provisions of this Agreement and because of the difficulty, inconvenience and uncertainty of ascertaining actual damages, and no other damages, rights or remedies shall in any case be collectible, enforceable or available to Seller other than as provided in this Section, and Seller agrees to accept and take said deposit as Seller's total damages and relief hereunder in such event.

Former owners just have no incentive to sign an earnest money release, and without their signature, you're money's tied up.There was another recent sale on this topic:http://www.biggerpockets.com/forums/103/topics/50743-home-tendering-agreements

By his/her signature herein below, Seller’s specifically agrees to the provision stated in this paragraph: (1) Buyer may cancel this contract, (2) Buyer may insist upon the specific performance of the Seller under this contract, or (3) Buyer shall be entitled to receive from Seller a total sum of $50,000 or 25 percent of the contractual price, whichever one is greater.___________________________________________________ SellerDate ___________________________________________________ SellerDate XXXV.DEFAULT BY BUYER: In the event Buyer should fail to consummate the transaction contemplated herein for any reason, except default by Seller or the failure of Seller to satisfy any of the conditions to Buyer's obligations, as set forth herein, Seller shall be entitled to retain the earnest money deposit, such sum being agreed upon as liquidated damages for the failure of Buyer to perform the duties and obligations imposed upon it by the terms and provisions of this Agreement and because of the difficulty, inconvenience and uncertainty of ascertaining actual damages, and no other damages, rights or remedies shall in any case be collectible, enforceable or available to Seller other than as provided in this Section, and Seller agrees to accept and take said deposit as Seller's total damages and relief hereunder in such event.

People have their website addresses in their signatures many times and also their city.

Anthony Palacino - I'll let Michael Quarles correct me in case I'm wrong, but if you go to the site shown in his signature under his post, you will see some links to info that might fulfill what you are seeking.