In my experience the basics for a functional RE based CRM are:Custom Fields for Data Objects (Leads, Prospects, Applications, Buildings, Units, etc...)A Screening Engine (background/credit checks, employment verification, etc)Online Rental Application (this should automatically run the application through screening)Ability to mass email/sms leads and tenants to provide informationSurveys/Inspection formsI've been building real estate CRM tools for years.

Is there an online platform on which we can do this or do you track this in a excel sheet ? 

BP offers free online videos and educational courses for you to watch and learn from.

Making the connection in person is completely different from an online interaction.

I am going to have my tenant pay rent online directly into my new checking account.

Online videos on social media platforms, educating your clients about nuances in private lending, coming on a popular blog to help people with financing issues, and connecting with others in your industry that specialize in something else. 

I'm using QuickBooks Online.

I've seen post online that say that Section 8 will help you with the cost to remodel a home if you then place it on the Section 8 program.

Go to Etsy and search for "rental property tracker," and you will find hundreds of nice spreadsheets to track 10-20 rentals, usually for under $10.Software has extremely helpful features like online payments, marketing syndication (click a button, and your property is advertised on multiple sites), electronic document review/signing, maintenance tracking, and owner reports.

I am thinking if there is any online property management that does showings and responds to any maintainence requests?