Jenifer can be found at the "Soaring Eagle Resort", all the way west of Splendid, at the end of Route 67. You don't need any special dialogue skills to get her to come with you - simply invite her, and she'll be glad to come along.
Survivors develop their skills over time, these stats represent their starting point.
Jenifer immediately puts a lot of points into her Negotiation skill, following up with Medical and Mechanical, and Science and Leadership later on. Her stats focus on Vigor, Agility, and Perception.
*Helpful: "Jenifer's comforting presence gives an extra
10 Morale per day when she's in the Hospitality job."
*Intensive Care: "This ally enjoys having an Infirmary in the Shelter, and will gain a one-time
Mood boost after it is completed."