You should have an amortization table that shows what percent of the payments are interest.

I then can create pivot tables to look at my spending and adjust accordingly.

The reason being the ARV value of the house is considerably higher after rehab and refinancing a hard money loan with traditional 30 year essentially leaves some cash on the table and you can continue to invest.How did you find this deal and how did you negotiate it?

What do you bring to the table? 

Once you're clear on that, it gives you both a better sense of the value they're bringing to the table for this specific deal.From there, it's really about figuring out a compensation that feels fair to both of you.

That could tip the tables. 

I have a possible partnership on the table where the partner funds the deal 100%. 

You keep track of all of your real estate related transactions (date, amount, vendor name, purpose, property identifier) and then create a pivot table from this data to quickly create a rough Profit & Loss Statement.

Leverage is a tool just like a table saw.

I am planning to perform a cost segregation study on the STR's I have purchased to take advantage of the bonus depreciation rules currently in effect to offset the tax consequences of leaving some $$ on the table coming out of my 1031 exchange.