Yes document, but….. I would visit the appropriate HOA person and have a nice face to face discussion. You sound reasonable. Things can always get out of hand when documents start flying, and much like cutting off someone while driving, letters and emails have that sense of distance and people generally provide much more consideration face to face. One you put a face on the documents, and if your the one being reasonable, the tone will usually change. And if the neighbor is a PITA, sometimes HOA people will say things verbally that they would obviously never put in writing.