Are there any decent fics of a lesbian Ranma?

[Dumbledork]

Migele's Sailor Santa series fits the bill. Ranma (in both forms) is in a relationship with Yuki the Elf and Hotaru Tomoe.

http://www.fanfiction.net/u/368098/migele

[PCHeintz72]

Is the story finished?

Glancing at Secrets, the arc 1 and I think the prequel are finished, but I'm not certain arc 2 is.

I've not read that one, though the author is good, I liked both 'Almost a Miracle' and 'Goodbye is Not Forever' and liked both, but neither really match what was asked for here.

[jasonjkay]

Fist of the moon by Penguin-sa
Ranma is locked as a girl and eventually gets together with usagi. I'ts not quite finished but it is pretty long.

Clothes Make The... by Nicholas Leifker
Ranma tries on girls clothes and likes it so stays that way. For part of the story Akane tries to come to terms with having a lesbian relationship with ranma. I know it doesnt quite end as lesbians but it's close for most of the fic and it is finished.

This one is by an author almost universally hated. Still, I liked the story:

Does this mean nobody will like this one? I'll list it anyway.
Three sisters by Fred Herriot
Ranma drowned in girl spring, passing aliens called nedo kata merge with him, his unborn sister and the girl who drowned in the spring creating three girls, triplets. They are also a lesbian race.

Another im not sure I should mention but does match your criteria is 'lost innocence' by Thrythlind
This one involves rape which locks ranma in female form. She gets toegther with Akane in a sort of lesbian relationship, however Akane eventually gets cursed to change into a guy after using instant guy packets too much. It's easy to find on fanfic.net

If you really want a Ranma lesbian story then you might be looking for lemons, I only know of one and it's pretty short but ok. It's 'What price love' by Jon Osborne. I wont link directly to it but it can be found in the penultimate ranma fanfic index

Thats all I can think of at the moment.

[P.H. Wise]

have a female split off of Ranma who remains interested in other females, due to the male cat spirit of the neko-ken. I guess technically it's transgender, rather than lesbian . . . now I'm confusing myself.

Trannies will often do that.