Equivalence principle and time dilation

I apologize to ask, again and again, a question that seems to come back often, but I believe this is new.

I am trying to test the equivalence principle applied to two similar situations:

1. Flat spacetime. An inertial observer Alice (equiped with a set of coordinates ($x$,$t$)) is watching a non-inertial observer Bob (proper time $tau’$) uniformly accelerating toward her with a constant proper acceleration $alpha$. At time t=0, they are separated by a distance $L$. What is the relationship between d$tau’$ and d$t$ ? For $L=0$, Rindler says (after some work)

$dtau’ = frac{dt}{sqrt{1+(frac{alpha t}{c})^2}}$

I just wanted to make sure this is true for $Lneq0$.

2. Non-rotating mass $M$. Bob, still a non-inertial observer with proper time $tau’$, is stationnary with respect to the mass $M$. Alice is radially free falling toward Bob, from an initial distance $L$ between the two. I don’t believe the Schwarzschild coordinates apply here, because Alice (equiped with her set of coordinates $(x,t)$) is free-falling, she is not "far away" from Bob and stationnary to him. (I do know the gravitational time dilation formula). Alice sees Bob (and an entire planet) uniformaly accelerating toward her with a proper acceleration $alpha$. Again, what is the relationship between $dt$ and $dtau’$ ?

Can you help me ? Please do not use $c=1$, or $G=1$. Do we agree that, in the situation 2), Bob feels a proper acceleration of

$alpha = frac{1}{sqrt{1-frac{r}{r_{s}}}}frac{GM}{r^2}$

Using the popular convention?

Thank you !