Please see below our letters to the ECO. We will really appreciate it if someone could let us know if this is okay. Is it too lengthy?? Please help! Thank you so much!
Dear Entry Clearance Officer,
Re. Settlement Visa (Spouse) application for Mrs 
My name is  and I am...
I'm hoping to get some confirmation before submitting the paperwork. We're still finishing getting a couple documents together, but I want to fish out any problems sooner than later so any advice is appreciated.
Here is my letter:
Dear Entrance Clearance Officer,
I first started...
I am an American citizen married to a British national, and we are living in Latvia at the moment.I am trying to complete the documents required to apply for a spouse visa for the UK.
Regarding the letter of introduction that I (the applicant) must provide , what must it contain? And...