Any building and loan association or company or savings and loan association or company or savings bank or any other association or corporation that may now or hereafter be eligible to become a member of any federal home loan bank according to the terms of the Federal Home Loan Bank Act, as the same may be amended from time to time, is authorized and empowered to occupy the same office or offices and use the same facilities, officers, directors, and employees as and in conjunction with a federal savings and loan association upon such terms and conditions as may be agreed upon with the said federal savings and loan association.