Any certs you can get make you more marketable to hospitals. If you have say, CCRN over another person, that might be the deciding point for the hospital. Depending on the facility most want at Least a year to 18 months of experience. And your experience has to be consistent in one speciality.
Most contracts are 13 weeks. Some are shorter and sometimes you can extend. I travel with my son, husband and two dogs. There have been a couple of times they tried to house us in an extended stay which I refused and just sound housing myself. This is an up expensive option. We try to save to be prepared for that.