I wrote a post on it the other day that explains some of the things you are asking and it includes a spreadsheet to make it easier.https://www.biggerpockets.com/forums/311/topics/67...As you can see, it is a bit of an advanced technique so it requires a lengthy explanation.

Best bet with Trenton is tbh- Section 8 tenants at least the money is a little bit better- TBH somebody always needs a place to live and I look at it as someone is always going to get paid for it - Most landlords in Trenton I know are holding the property until the value is goes up - If it really becomes too much look into property management companies, also with the criminal vs. bad credit (I  know its lesser of 2 evils ) maybe have tenants with bad credit submit a letter of explanation maybe it can help weed out even more potential bad tenants -

Managers are not able to remove the fee (only the ops manager can) and I don’t run many reports but I do run a report to see all late fees that’s were removed and explanation for doing so. 

I know the above explanation might sound as though I’m going to trigger a due-on-sale clause; however, this is not the case for two reasons.

 @Rashad EllisHere is an explanation of the self sufficiency rule:The maximum mortgage amount for 3-4 unit properties is limited, so that the ratio of the monthly mortgage payment, divided by the monthly net rental income does not exceed 100%, regardless of the occupancy status.

@Jeff Cichocki Fantastic detailed explanation, your comments above leads me to a discussion on one of the Wholesaling FB Group discussions a few weeks back, about getting paid on a contract.

When I asked them for an explanation of results, they said they needed to gather info.

@Stan WuNice explanations and diagrams in your post.

I would assume based on your explanation, Ohio may be one of those states that monetary damages are considered adequate, which is what was outlined to me. 

If the FICO score is low and you really like that candidate you can ask them if they have an explanation for why the score is low and if they have proof to back that up.