If a transgender person joined any gym I ran I would impose the same rules we always had. I would have to tweak the wording, in my opinion, to be professional.
Be on time for class, every day, do not ever be late.
You will behave as a lady or gentleman at all times. (which I'm guessing would be a win win for them, no?)
You will not drop your hands when you are fighting. Ever. You have to get a mouthpiece and cup (if it applies) by the end of one month. The cup (again, if it applies) will be worn in class everyday.
You can train free for the first two weeks to see if you like it. (up to a month) Then you need gi, a black one. Once you sign up, that will be your start date. Tuition is your responsibility, don't make me chase you.
You will sign that book, right there, every time you enter the floor for a class. If you do not, you do not get credit for that class and you will be doing push ups for the entire class. Alone.
No shoes on the dojo, unless otherwise cleared with the instructor teaching. No jewellery will be worn in class. You get one reminder warning.
Politics and religion are not allowed in the dojo.
I really can't see any problems. I never had "woman" only classes, don't believe in them. The bathrooms we had were one person deals, a women's room and a men's room. Can't see any problem there. The dressing rooms might be tricky. Would have to have played that one by ear. Might've had to build another one, but no big deal, we had a lot of carpenters.
I can't see any of the other students caring too much, but that's just a guess. Heck, we even taught democrats and lawyers.