It's not necessary to have them all sign the same copy of the signature page of the sales agreement, you could send a copy of the page to each and have them sign it - along with a witness - and send/facsimile it back to you.Naturally, you should seek advice from your attorney in this matter on which avenue would be the easiest, most cost efficient and expedient. 

For a new limited liability company, a copy of the articles of organization or a filing receipt must be filed with the application.

They can get you a copy of a sales agreement.

I am getting a copy of the letter from the tenant tonight and going to call tomorrow to see if I can straighten this out.  

I wrote a nice business letter and included a copy of my property flyer/details and asking price.  

We get a copy of it.

I copied and pasted my previous response from your other post Robert in case this can help anyone else. 

I am astonished at the knowledge that is so freely given here.  

Some shyster gets a copy of an old mortgage and makes out a transfer to him and you have lots of problems. 

Get a copy of the leases, know the taxes, figure out your finances make an offer contingent on an inspection.Good multi gamilies go fast so dont wait