Average $671/mo-$1128006 Vacant LotsTotal $130,500The expenses that were presented seemed to be quite low to me so I have adjusted them by about 25% after doing some background work and calling local vendors that are familiar with the park.$37,500 Am I missing anything when evaluating the property?

It's a good way to do it, I use Personal Capital for mine, but I've found that going a step further and going through the activity of logging it myself manually has made all the difference.

Make adjustments to the comps for features, size, finishes and things like backing a busy road, this should bring the range in tighter.

I say don't make any major adjustments.

I know the heat pumps don't work on the coldest days, but we have to manually turn ours off and turn the backup on.

However some budget adjustments personally can fix that as well. 

You need to adjust the basis for depreciation that is already taken and recapture it and pay lower of your marginal tax rate or 25% on the depreciation already taken.  

I have tried re-syncing calendars, trying to manually block and they reopen the dates and nothing will get rid of the reservation on my calendars!

As you adjust to your new home and learn your market, I'd recommend joining local meetups and FB REI groups.

I can also adjust the down payment on the 4 plex it is early in the process.