Rental Properties Effect on DTI

[Tanner Frey]

I will soon be looking to buy a house for my fiancé and myself. I am trying to figure out a ball park on what my current DTI is given I currently have 2 investment properties. I currently live with her in her condo, so my only monthly debt expenses are the two rental properties, and $150 for credit cards and a HELOC. As far as I understand, when looking at the Schedule E, if the number is positive (average +$3600 over 2019 and 2020 tax returns) that number gets added to income. My question is, since it is positive, does that negate the related monthly debt expenses in relevance to DTI? Essentially, given the above, would my monthly debt be the $150? I hope this makes sense, I can certainly try to explain better or add more detail if necessary.