This modern home is part of Griffin Modern's mission to create affordable, high-quality residences within walking distance of downtown Griffin.

While you shouldn’t categorize all tenants and it’s the landlords responsibility to properly screen, the tenants who reside in better situated housing and pay higher rents are more financially responsible meaning lower rate of rent loss and will generally take better care of the property which combined will result in less time allocated towards management functions if self-performed or more favorable management fee structures if 3rd party management companies are utilized (which ties back to #1, as well).

This low inventory will continue to pressure up rents.The sales market remains hot.Sales - Months of SupplyThere are about 1.5 months of supply for our target property profile.

There are another 20-30 questions I could ask before I could even begin to advise.EDIT - It looks like in Aurora, it needs to be your primary residence if you want to STR the property.https://www.auroragov.org/resi...

There is nothing in the original post that stated the resident's situation was anything like yours.  

This is when you buy a primary residence (1 to 4 units, the more the better) which you can usually get for a very low down payment and get the best interest rates on and then rent out other units and/or bedrooms within your unit to pay for the mortgage and other expenses.

He has numerous types of offerings (ATM, car washes, land).

Find out what their actual infrastructure is in person and how they are set up to serve you as an investor and also the residents occupying the properties they manage. 

Also should I send him a notice at one of his old residences ?

Put the profit towards a new Primary residence and ~$50k towards a rental property.2) Rent it out and eat the cash flow loss, hoping rents increase.