My investing partner and I both have our own separate LLCs, but we want to partner on a deal 50/50 and both have visibility to the all profits/costs/expenses in the bank account. 

To easily have simple calculations be performed like expenses and such?

For the most part, if it is reasonable for the rental it is deductible (technically the rule is ordinary and necessary, but for practical purposes it is that the expense is reasonable).

My pet peeve is leaky pneumatic airguns which require a hose, power cord (power) and a noisy, clunky expensive compressor.

Hi, I have a large unexpected expense on one my rehabs and I'm trying to keep my costs as low as possible on other items. 

It's located in a residential area and for example if I were to offer it as a wedding venue, it could not be used for a night time wedding dance as this would disturb the neighbors.Three bedroom apartments rent for $750.I do not want to go to the expense of turning it into a duplex or triplex.I do not want to go to the expense of turning it into a home.Has anyone else done something like this?

Yes I attended the 3 day and I also attending once of the expensive classes with a friend for paid for a series of extra education to the tune of $15K or so.   

I am taking the Meals & Incidental Expenses related to the trip, but wondering if I can also take the lodging deduction. 

Island View Park is located is one of the more expensive neighborhoods in South Beach.

Your down payment would be more but I would think more of your  monthly expenses would be less