Your tax deductions are now 20%/20%/10% of the new mortgage interest, and these percentages is how the payments should be made from the LLCs accounts.

If you just buying a C class and making cosmetic improvements which has volatility of continuous maintenance, capex expenses and potential tenant turnover.. then those percentages will be maxed out every monthBut if you take a different approach of gutting a place and replace old and making new you will attract a better tenant and less maintenance capex issues.. 

Deal finder can get wholesale fee, pm can get a percentage of the renovation budget as a fee. again, I would really consider what you are getting into.

You will want to do some research or bring in a professional if you take this road as percentages vary by utility and maybe by state. 

Most everyone uses a percentage to quickly analyse properties but each property is unique.

Rather than refinancing each property, after every rehab we just have a significantly higher percentage of equity in that property.

What percentages do you LA investors use when estimating opex while underwriting a property?

You can not compensate people for raising capital by giving them a percentage related to the amount of money they raise.

If you built the list yourself, the percentage of wrong numbers will be 5%-10%. 

Notice this is not cash on cash return, but rather percentage of rental income.