Consolidation of processing would be very valuable, if not mandatory.

I would have been way ahead if I had paid attention to increasing my Wealth with my Rental Houses and Duplexes before the Economic Collapse of 2008, with consolidating into a few Commercial properties and not having all my Tenants lose their JOB's the first two weeks of the Crisis.

You can pay them a wonderful price for their asset and still make significant profit upgrading and consolidating facilities.I love self storage.

I'm exchanging some  rural c's 30 mins away into a more consolidated and higher class neighborhood in my backyard and considering syndications and OZ funds.  

I’d use the mortgage to pay off all other and consolidate into a 30yr fixed (you can always pay down faster, typically schedule is pretty close in terms of cost to a 15yr, just you have the option not to if plans change- like recessions)Other renovation ideas, depending on income & credit- 1 yr interest free credit card for the renovations. $40k may be a bit much for this, however recently did about half that & worked perfectly for us- they paid us at the end of the year in rewards.

I think it is better to consolidate into one of them, whichever you feel useful. 

Cue the consolidation and pricing to 'market' rates

and would this consolidate all the LLC payments (from owning mulitple buildings) to one LLC payment (from the umbrella)?

So far i'm using homepath.com and bank websites but wondering if there's a single source that consolidates all of that.

If this is true, you may want to consider bundling all the insurance under your new commercial policy, the consolidation typically adds some savings...Just a few thoughts.