Make you say WOW, everytime.

[VolumeFinder]

I differ with you on that. When your hiring a firm to do an audit you only do a letter of engagement.
When your in the process of buying a product you do a letter of intent. You may want to do some research on the two. Look below.
So BLDW doing a letter of engagement is a very positive step for the future of the company. Like I said this a great mid to long term investment and I would advise people to do some DD on it.

An engagement letter defines the legal relationship (or engagement) between a professional firm (e.g., law, investment banking, consulting, advisory or accountancy firm) and its client(s). This letter states the terms and conditions of the engagement, principally addressing the scope of the engagement and the terms of compensation for the firm.