Additionally, properties with high monthly costs struggle to compete with fee-simple homes, affecting resale value.

No additional analysis or criteria considered.  

Prepare for additional costs: If you’re adding units, you’ll likely need to address the water meter situation and possibly upgrade utilities.

In addition, yes there are property managers but very few want to manage my B or C class property for an extended period of time in the fashion I would if I was managing it or that a really good sponsor would.

There are cheaper one’s in D/F areas but I would be careful as those can create a laundry list of additional issues.

In addition cash flow is taxed annually.  

There is some additional information that wasn't mentioned in your post above which sheds a different light on the situation.  1.

Further, he can extend his “grace” period a further 30 days by paying us an additional $50k.So far, we’ve collected two $50,000 payments in the last i0 days plus the $36,000, or $136,000.

In addition to what other said, because some landlords don't increase their rents every year.

Additionally, take time now to build relationships with reliable vendors and contractors; having a go-to network for maintenance issues will save you time and stress.