I know I ended up owing about 200 of them that i foreclosed on out of state landlords who could not make it work.. they lost everything and I ended up with their homes. if there was less debt or they paid me off sooner this would not have happened.

The only reason I would see to not keep a perfectly performing cash flowing property would be drastic uncertain market conditions, need for funds, control more debt, or to lighten risk. 

what if you buy the 8, and sell one for $$, use that, and have 7 with no increased debt or partners?

@Cory Raizor  Her debt or income won't count as long as she is not coming on loan even though she is only on title.

If you have some really high interest CC debt or a lot of CC debt then you should probably start putting it on these bills to boost you credit score and improve your debt to income ratio.

For example, I think we are late cycle, so I lean toward the safest part of capital stack which is debt (or debt free equity).

This was enough to keep us afloat, but not enough to get of my newly incurred debt, or pay for all of the hospital bills piling up.  

For example, I think we are late cycle, so I lean toward the safest part of capital stack which is debt (or debt free equity).

No credit card debt or any debt for that matter & my credit score is solid!

For a poor place say jackson mississippi I might do 85%.Note this does not include bad debt or people who don't pay their rent which usually adds a few more points on top of that.