The Sisters' Community Charter (Rule) is based on the one established by the Saints Martha and Mary Cloister of Mercy in Moscow, a cloister established by Holy Martry Grand Duchess Elizabeth Feodorovna Romanova during the beginning of the XXth century.

The lifestyle of our sisters of charity is very close to that practiced by nuns: public church prayer each morning and evening, and obedience during the remainder of the day. Following the completion of obedience over a specified (or unspecified) period of time, lay sisters are "ordained" to the sisters of charity. Though they do not take the veil, they do express a voluntary desire to minister to the Lord and to His Church with obedience and without profit in accordance to the Sisters' Community Charter (Rule).

Following prayers and spiritual advice, the Sisters of Mercy are called to go to those who grieve, to serve Christ by being hospitable to wanderers, and to lovingly care for the sick. Our Lord and Saviour, Jesus Christ, admonished us to love our neighbor when he proclaimed, "Truly I say to you, to the extent that you did to one of these brothers of Mine, even to the least of them, you did it to Me."(Mathew 25: 40)

Having devoted themselves to mercy, the sisters voluntarily work for our Lord. The lifestyle of the Cloister precludes any inequality, subdues egos, extricates worldly wisdom, offers a sense of shared identity, and finally, obliges all to to mutually help one another, and to pray.

Sisters of Mercy begin each morning with public prayer in Church, The Rule entails the reading of morning prayers and the Gospel accompanied by low bows. After the morning Rule, sisters are given obedience by a senior sister. Their obedience consists of work in the Church, needle work, care for the elderly and children, the cleaning of rooms and surrounding environment, work on the farm in addition to numerous other duties. Work is combined with prayer in the Cloister. Even a meal is accompanied with the reading of holy books. Sisters, whenever free of obedience, attend the Divine Liturgy and Vespers where they both sing on the kliros and read.

A day is measured without fuss or turmoil; a day of work and prayer ends with a religious procession around the Cloister followed by the common Evening Rule consisting of prayers, singing the Akathistos, reading the Kathisma, low bows, and finally, preparations for Holy Communion. After the Rule forgiveness is asked from a senior sister and all the sisters.