1 After the fall can man chose to come to God on his own? Man had the ability of choice for the beginning --------- so yes.
2. Does our good have a to do with any condition for God giving us salvation (ie. Christian view of we can/are saved now). There is none good but the Father -- so no.
3. Did Christ die for all men or only the saved? Since dying for the "saved" is a redundancy ... we must agree that He died for all of mankind.
4. Can one reject God and salvation ? Probably the most critical of questions on this list. And the answer depends on one's concept and definition of "salvation." the prodigal son remained a member of the family throughout. Until he put himself in association with the Father, the benefit of the family tie was not obvious (at least, not to me.) What was given to him and his brother was completely undeserved. Both practiced their brand of selfishness. Neither were "on the same page" as their Father. " Reject[ing] God and salvation" are not two different things in terms of the fact that they can separated to ANY degree. Having said this -- my answer is yes.
5. Can a person "fall" from the Grace of God?
What are the implications inherent in this question? There is a sense in which one cannot avoid the grace of God, my friend. Every good and perfect gift, the paycheck, the rain, the kindness of a son or a daughter, the mate who gives us that feeling of fulfillment -------------- and much more are all the product of grace. Paul's conclusion that Christ has reconciled all things unto Himself is a statement of grace. Can we refuse the blessings of grace? Yes. We can choose the pig pen. Can we escape His love and concern and ability to complete what He has begun within us? No.