We use accounting software that codes the income and expenses to the property (called a class) so we can run P&L;s on each property with ease.Your accountant and bookkeeper will also thank you later for keeping it simple and avoid significant accounting costs. 

@Yixin Huang we use a property management software which keeps the communication centralized and updates them on status. 

things missing in your list (everyone manages differently, so take it with a grain of salt)Vacancy rateTurn overbad debt legal fees (evictions as needed)accounting fees for professional tax prepmaintenanceProperty TaxesSales Tax on PM fees (In NM, this is charged, not sure about where you are)Reserves for replacement CAPEX - furnace, water heaters, ac, roof, parking lot, etc.Admin, software, advertising, etc.Cost segregation study for accelerated depreciation captureAs for your loan. 

Don't waste your time trying to explain or justify the applicant's behavior. 

I'm a web developer/ real estate investor and I just started playing with Dapps, is anyone else working on similar application?

What kind of software do you use if you don't like to drive for dollars  ?

We had someone submit an application with a fake Visa and fake letter of employment that obviously looked real.

My understanding of the current text messaging compliance is that it's OK to send unsolicited texts as long as you don't use some kind of software/automated technology.

Based on my experience, you either pay some more but get a high-quality service, or you have really raw but cheap software.

Google Forms are nice to input cash transactions directly into spreadsheet, to get applications from tenants, to ask virtual assistants to enter data.