[american colleen]

Dodgy... my mother in law could then claim that since there is no Lutheran Church in our town or in surrounding towns, she is entitled, under Catholic teaching, to receive Communion at a Catholic parish?

[GirlShortstop]

Someone should ask a question, imo:  Why do you not convert, if you believe in Real Presence and desire communion with The Catholic Church frequently?

It seems to me that grave reason would be eliminated in her answer.
FReegards.

[tjwmason]

my mother in law could then claim that since there is no Lutheran Church in our town or in surrounding towns, she is entitled, under Catholic teaching, to receive Communion at a Catholic parish?

First, nobody is entitled to receive Communion. Secondly, it would depend on her perception of the Sacrament (i.e., she would have to agree with the Catholic Church). Thirdly, inter-communion is not supposed as a normal occurence, but rather for special cases (for example, I have heard of mixed marriages where the non-Catholic has been granted permission to recieve on a major wedding anniversary); if a person wanted to receive on an on-going basis then conversion would be necessary.