When I first started one of the most frustrating things was trying to get someone to actually go through my hive with me and help me understand exactly what I was looking at or what I should be looking for.  Admittedly  I can not identify ever problem in the hive especially the brood diseases since I have not experienced them yet.  I can help with Varro, tracheal mite and nosema counts. Also if you want to mark a queen but nervous about it I can help there too. Personally I keep all my queens marked, I believe it helps in finding her sometimes and also lets me know if they swarmed or replaced her for one reason or another.