A defender, Renee played over 40 games for WSL2 side Watford and has impressed so far in pre-season.
"Renee is only 21, a young, up-and-coming player who has been at Watford all her career so far," said manager Karen Hills.
"She's coming back from a knee injury and she gives us such power, especially at set-pieces, which are so vital.
"She wants to be at Spurs, she's worked hard in pre-season and she will be another important addition to the squad."
Spurs Ladies are unbeaten so far in pre-season after friendlies against Enfield, Middlesbrough, Arsenal and Watford. They are scheduled to kick-off in the FA Women's Premier League against Swindon on Sunday 28 August.