Tenants will tell on each other and describe other issues that have been ignored or neglected that the inspector didn't see.Once I've built that rapport, then I start my rent increases. 

Very likely I would.Would I buy a suburban 80s built multifamily surrounded by cranes putting up thousands of new multifamily units?  

My c class units, built in the turn of the century, make $500 per door.  

They are building/selling condos now which I would jump in into their early stage (even before they are built) to get a better deal.If you already did please tell us how it went!

So I ended up investing in Detroit proper and built a 12-door rental portfolio.

That kind of balance is crucial, and it sounds like you've got a solid foundation for success.Looking forward to hearing more about your journey and exchanging ideas here on BiggerPockets.

I have a PhD in Theoretical Chemistry/Quantum Dynamics... https://pubs.aip.org/aip/jcp/article/142/24/244112/74387 ... and I literally designed and built my own house off of 30A in Florida ... https://www.scenicsir.com/homes/242-Blue-Gulf-Drive/Santa-Ro... ....

@Becca F.To me, it comes down to their experience, their results, and the community they've built that has the results they are trying to deliver.Coaching is only one part of the fulfillment.

With this information, you can reach out to tired landlords who have built up a significant amount of equity and are more likely to be open to dealing with a buyer directly rather than going to an agent, listing it, etc.Best of luck. 

Buildium claims to have a complete accounting function built into its system.