So depending on what your investment goals are and what type of properties (Class A through C/D) and where in the city you want to buy, that can directly impact the level of stability one can find within the market here. 

Similarly, if you put several Class D tenants in a Class A 4-plex, what do you think will happen to the property?

Quote from @Gene D Stephens: Jason,Thank you for the advice. 

It's mostly Class A properties, a few Class B.You may find the below copy & paste info useful in addressing your question:----------------------------------------------------------------------------------Recommend you first figure out the property Class you want to invest in, THEN figure out the corresponding location to invest in.Property Class will typically dictate the Class of tenant you get, which greatly IMPACTS rental income stability and property maintenance/damage by tenants.If you apply Class A assumptions to a Class B or C purchase, your expectations won’t be met and it may be a financial disaster.If you buy/renovate a property in Class D area to Class A standards, what quality of tenant will you get?

Similarly, if you put several Class D tenants in a Class A 4-plex, what do you think will happen to the property?

d.  

Let’s make 2025 a transformative year!

The #1 determinant is the Tenant Pool.If you don't believe us, try putting several Class D tenants in Class A apartment buildings and watch what happens.

Here's some basic copy & paste info that may help you make better investing decisions:----------------------------------------------------------------------------------------------------------------Recommend you first figure out the property Class you want to invest in, THEN figure out the corresponding location to invest in.Property Class will typically dictate the Class of tenant you get, which greatly IMPACTS rental income stability and property maintenance/damage by tenants.If you apply Class A assumptions to a Class B or C purchase, your expectations won’t be met and it may be a financial disaster.If you buy/renovate a property in Class D area to Class A standards, what quality of tenant will you get?

Here's link: https://rent.app/landlordAppears they are a type of payday advance lender for rent payments.Seeing more & more of this on banks statements for rental applciations, so predicting we'll all be accepting rent from them eventually for Class C & D tenants that can't seem to get out of their paycheck-to-paycheck cycles.