Need Professionals to help with Contracts and title info!!..thnks;)

Hi,I just need some help with a few things here.First off,does any body have any good purchase agreement templates and assignment contracts?Also,what are the typical expenses as far as the transactions are concerned such as closing…etc.because I know the transaction costs are paid by the buyer,but I do not know where the fees are coming from.Also,as far as closing is concerned,since I am assigning the contract to another buyer,do I have to find a title company or does the end buyer do all of that?and if I have to find the title company,what is the process like?any fees have to be paid?do i find a title company after the house is under contract or can I have one that I use for multiple houses??One more thing…sorry guys,haha but do you guys have any type of script that can help me screen sellers?Is there any specific criteria that they should meet besides the obvious of an asking price well below market value,motivation and alot of equity?I need to know what exactly to look for and what to stay away from.And what are some questions typically asked by sellers that these courses and guru’s don’t teach you that throw you off guard when you first start??Sorry for all the questions guys,but I realy do appreciate it,I’m a young eager dude ready to get goin!haha thnks again you guys,hope to learn some good info from you guys:)

ps…i just cant stop talkin…or typing…when I start in about a month,what do you guys think about getting a phone answering service,I thought it would be good to get since I can’t be available to the phone 24 hours a day,plus it gives my “company” a professional appearence and since Ill have them pre screen the sellers,i just figured it would be smart to do,especially since Im just starting

still looking for an answer guys,any information is better than none
Thank you and God Bless,
Nik Tantardini