Using "time constraints" in the sentence Hi everybody, We have meetings in Houston next January, so we are in the process of applying for the US visa. As you know, obtaining the US visa, sometimes, needs a long time. So, I wrote a letter to ask the company that invited us to attend those meetings to send the required documents ASAP as we don't have enough time. Basically, my boss complained about my letter especially the term "time constraints". Please find below both a part of my letter and my boss's proposed corrections. What do you think? My letter Due to time constraints related to obtain the US visa for our delegation to the meetings that we have proposed to take place in January 2018, it would be grateful if you would expedite your process for the said purpose. My boss letter Considering the limited period of time that is available to obtain the US visa for our delegation to attend the proposed meetings, please provide.... Thanks in advance.Also, what is the meaning that this sentence conveys "to the meetings that we have proposed to take place in January 2018"? Have we proposed those meetings in general or we have proposed the date of those meetings only? In fact, we have proposed the date only.