This is a very common renovation in my area.

Nothing exciting* Contacts - people that are in properties and or have been historically* Leases - term, amount, contact and the signed agreement* Files - closing docs, appraisals, insurance, etc. grouped by Property* Income - amount, date, property, attachments, category (rent vs lease option fee, etc)* Expenses - actual expenses, date, property, attachments (mortgage, capex, maintenance, turn, etc.)* Reserves - savings from each rent payment for future expensesIf you wanted to use more like a PM, you could set up an online form for tenants to input requests and include attachments and track maintenance through it.Hope that helps.PS - I still use Excel for projections/modeling

They came to me together wanting to rent the house, passed all screening, and signed a year lease.

My one question is: Have they signed a new lease in any form?

Compare to 5 year ago, the appreciation on average is over 75% ($425K then - $750K now) and the rents increased over 55% with no sign of stopping, vacancy is basically 0%, abundance of tenants looking for houses.  

The allure comes from very generous common spaces, lounge areas, outdoor space, pool areas, gyms and - I have even seen an indoor golf simulator.

Speaking of today, I just got done signing the loan guarantor docs on a 400+ unit apt building worth over $30M that my company is closing on tomorrow.

One thing's for sure: GC definitely wants people to sign up for his new Cardone Capital fund :)

He suggested one called Tenants In Common where you could keep control at any percentage of ownership you had. 

I have signed up to all the meet-ups in my area.