The Core Four - Who's your lender?

[Martin Pacheco]

The other day I was thinking about David's Green article, the Core Four of a Real Estate Investment Team. 

This had me thinking about adding new partnerships and becoming a more valuable member to an investor's team. So I ask, what are some of your favorite benefits and/or dislikes of your current or past lender.  Please feel free to redact or include information at your leisure.  

My goal with this post is to allow new investors to learn from other experienced investor's about pros/cons of their lender's partnership.