Good suggestions here... also, with the transition going on... naturally your girl will need to adjust too.
One thing.... do NOT put her in your bed for sleeping...IF she has problems sleeping. The reason is, she has been used to sleeping in her own room and by herself... IF you let her sleep with you/Hubby, just in case.... then she may never then go back to sleeping by herself, like before. And it's a hard hurdle to then get a child back into their own bed AND sleep by themselves.
There is always the possibility, that if she has a hard time adjusting.. .she may want to sleep with you.
Nothing wrong with co-sleeping... we have done that too. But since your girl is used to her own room & sleeping alone, and you and Hubby as well...then keep to your routine.
OH! I just thought of something... yes as mentioned before, a child will not always STAY IN their toddler bed, and it is a phase which requires running a lot of interference and trouble shooting. Some kids even 2-3 years old and older will not stay in their beds all night, even though we "wish" they would....they climb out, want to play, go in and out of their beds etc. It can take ALL night to get them to STAY in their bed and then FALL asleep. It's a process that takes a lot of patience... and if doing this in another person's home... it can be distracting. It will take time to transition her from a crib to a toddler bed. Probably, as most kids. If you start to transition her to a toddler bed now... then expect it to be a process...not a slam dunk event where she will just stay put or not enjoy the un-confined freedom. Even with bed rails... this is just so they don't roll out...but they can still climb out. Some kids are real climbers.
An alternative, since you will be all "sharing" a room... is a child's play-hut... you can put in a small foam pad (like those covered foam pads for exercising),or a mattress in there to soften the floor for her, and let her sleep in it... it will give HER privacy AND you/Hubby. And, it is "sort of" like a "room" (but for her).
My daughter, when she was a toddler, liked to "camp out" in the hut she has. It's real roomy in there and cozy.
Then, when you folks move out into your own place... you can transition her to her "own" REAL "Big-Girl" bedroom... and it will be exciting for her because then she will be older, and better able to understand. Right now, at 17 moths old, she can't exactly "pick out" her own room decor or bedding/accessories etc.
Here is a link:
All the best,