Name something you've learned from someone on BiggerPockets (podcast, forums, blog, whatever) and tag the person from whom you learned it. Name as many people as you want, but please limit your posts to one-person...

I'm currently in the process of refinancing a 2 family house which has two 4 bedroom 3 bath units in it.  There are a shortage of multifamily comps in my area and the comps that were used are all 2 bedroom 1 bath two ...