So when my win to lose ratio becomes unfavorable I'll sink hundreds into someone to go to trial for me. 

I would not consider a co-signer/guarantor if the primary tenant's income was insufficient or if they had other unfavorable traits that I thought they would be a disaster tenant living in the unit (like a prior eviction, criminal record, etc.) -- co-signers cannot help those things.

One of my unfavorable characteristics is that I can be a tad impatient.

The TCJA made unfavorable changes for hobby related expenses.A lot of moving parts here that you're asking about.

I have read some articles that speak favorably about this sort of investment and some that are unfavorable because the returns are too low.  

I am not able to to get a favorable loan at this point, like many others due to my unfavorable debt to income ratio.

Gravel or dirt roads with unskirted trailers fall in the unfavorable side.   

"Plumber digs small trench, house sinks to China, negative cashflow with unfavorable exchange rate" is a rather uncommon headline.

Due to unfavorable circumstances, showings would be difficult and they would prefer not to list the house on the MLS or have an abundance of people stop by.

If tenants decide to provide any new information (not previously disclosed) after lease signing, Agent shall have the option to carefully consider this additional information and either decide to terminate this Lease upon three days notice to quit if the additional information has the potential of unfavorably impacting the previously signed mutually benefiting lease agreement, or Agent can decide to make adjustments accordingly including but not limited to any additional screenings as needed, rent/security deposit/utility fee or any other applicable fee raises, pet fee implementations as applicable, request for emotional support documentation for new pets and request for completion of a pet addendum to modify existing lease.Unless otherwise communicated, Tenants are required to resubmit application for any Rental Lease Renewals.Tenants shall promptly notify Agent in writing of any subsequent change in the information provided by Tenants on Tenant’s lease application.