In 1907 Warburg (and Wolfsonn and Kann) convinces Ruppin to go to Palestine and head the soon to be founded Palestine Office. He arrives in Jaffa on May 7 1907.

In July 1907 one of the 60 families tells Ruppin they started Ahuzat Bayit to move out of Jaffa. Ruppin supports the idea and starts lobbying for a loan from JNF

https://books.google.co.il/books?id=cFTl_mDJIy0C&pg=PA92&lpg=PA92&dq=Eliyahu+Sapir+jakobus+kann&source=bl&ots=P-60XhjxAW&sig=ACfU3U2hHzGW5AmJu2t4SJeLkQtZfycZvA&hl=en&sa=X&ved=2ahUKEwisvLa__fLhAhWkMewKHdh0ChMQ6AEwB3oECAgQAQ#v=onepage&q=Eliyahu%20Sapir%20jakobus%20kann&f=false