Hello everyone! Could you help me to re-word and correct any errors in the following paragraphs? Thank you! I would like to introduce myself, Lin, and my company called ABC Ltd. We are excited to get to work on your new app, and we want to make sure that you’re satisfied with our proposal and have a full understanding of what to expect in this lengthy process. Creating an app is exciting, and our expert team is fully capable of giving you something unique that will help grow your business. The following proposal will set out a project road map from start to finish. You will have a complete understanding of the process and a timeline for completion. If you have any questions or concerns, please contact me personally. If you would like find out more about the services we can offer you, please do not hesitate to contact our office.

Very good. Only thing I would say is that you should not start a sentence with "And". So say "If you have any questions or concerns, please contact me personally."