Most real estate classes require a lot of hands-on daily management that makes or breaks the success of the investment. Nowhere is this more the case than multifamily apartment communities. When you’re dealing with tenants 24/7, there’s things that need prompt attention at times. Ryan Weiss, Principal Broker and Managing Partner at Blue Door Living, has gone from managing 40 units to over 400 units in just three years and has gotten all his clients by word-of-mouth. Ryan is based in Manchester, New Hampshire, a chronically under-supplied market just an hour north of Boston.