Hello, I am an individual parttime , salesforce certified developer and currently working as a technical lead for a enterprise Salesforce project for an MNC. I solely work on Salesforce only and all my recommendation and projects in freelancer are only came from Salesforce related project. you are most welcome to view the projects I have accomplished over here. I can implement the salesforce requirement of your organisation. Regarding current requirement, Email can be sent either by simple or time dependant workflow rules based on any field change Or, for any more complex scenarios you can have trigger or some button in a record based on the requirement which will send mails to target recipients with or without attachments. I have already developed such scenarios as a part of my other projects. If you feel I am trustworthy, let me know and will discuss the requirements in detail. Thank you for your time.