Welcome to CAF, @limabella!
I’m in the process of founding a new congregation myself. What you’re asking about is known as the Founder’s Novitiate. There is one group, the Marian Franciscans, who just finished a year with the Baltic Sisters of Charity.
The new community has to have their formation program written down before going to the Founder’s Novitiate. As one cloistered nun told me, “We have to know what to teach you.”
The Founder’s Novitiate is one year, which is the canonical Novitiate year required by Canon Law. Those in formation should be able to pay $100 a month/$1200 for the year to defray the expenses for the host community.
I’ve often fielded questions about the Formation program contents, and all seem to intuit the requirement of the Theology of the Religious Life. The formation program explains the Spirituality and the Constitutions. There must also be a Formulary, which gives the formula for the vows; and Customary which explains the spiritual exercises, or Customs. In other words, what devotions make this community unique?
New communities assist the bishop with the fulfilment of his pastoral plan (needs assessment for the diocese).
The community hosting the Founder’s Novitiate is to be similar in Spirituality to the new group. Again, from my experience, no community will say yes until asked by the bishop.
Hope this explains. The second link under my moniker is the old site for my new congregation. We are working on an updated version, probably with another host.
Blessings,
Mrs Cloisters OP
Lay Dominican
http://cloisters.tripod.com/
http://cloisters.tripod.com/charity/