Handing the ball forward

[Getting Fat]

First, my apologies for a question that I feel I should know the answer to, and has probably already been discussed...

(a)  Is a muffed forward handoff behind the LOS a fumble or an incomplete pass?

(b)  Is Team A allowed more than 1 forward handoff behind the LOS?

(c)  If there is a forward handoff by Team A behind the LOS, is Team A allowed a forward pass behind the LOS after the forward handoff?

[Etref]

See 2.12. a/b

SECTION 12. Handing the Ball
ARTICLE 1. a. Handing the ball is transferring player possession from one
teammate to another without throwing, fumbling or kicking it.
b. Except when permitted by rule, handing the ball forward to a teammate
is illegal.
c. Loss of player possession by unsuccessful execution of attempted
handing is a fumble by the last player in possession [Exception: The
snap (Rule 2-23-1-c)].
d. A backward handoff occurs when the ball carrier releases the ball before
it is beyond the yard line where the ball carrier is positioned.

[mishatx]

Also, 7-1-6

Handing the Ball Forward
ARTICLE 6. No player may hand the ball forward except during a
scrimmage down as follows:
a. A Team A player who is behind his scrimmage line may hand the ball
forward to a backfield teammate who is also behind that line.
b. A Team A player who is behind his scrimmage line may hand the ball
forward to a teammate who was on his scrimmage line when the ball was
snapped, provided that teammate left his line position by a movement
of both feet that faced him toward his own end line and was at least two
yards behind his scrimmage line when he received the ball (A.R. 7-1-
6-I)


So, to answer your questions: Fumble, Yes, Yes.