But, those deals are all costing something, typically time, and a lot of it. 

I would read up on "Squatters Rights" laws and how long a typical eviction takes to execute.

Do you typically take your insurance estimate, then multiply it by 3, and use that as an expense?

What I see is typically in the $3k - $6k range for those types of properties.

So if you see a foreclosure, it's not a typical thing, and the people involved are not typical. 

I didn’t have a pre-approval amount per se, I just knew that I didn’t have to worry about funding for anything under maybe half a million and my typical purchase and rehab was in the 150 to 250 range.

@Jay Fayz for SFR (1-4 family) Classifications are mostly opinion-based.Not aware of anyone tracking eviction rates, except Evictions Lab nonprofit that doesn't like landlords.Here's some info that might helpt:---------------------------------------------------------------------------------------------------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?

So, make sure YOU understand the copy & paste info below: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?

As a SFR investor for over 15 years I have been wrestling with this question in the past, because it feels like you should upgrade to "bigger".I know for sure that I would not enjoy the ownership experience that comes with a small 4F, because in Milwaukee that typically also means lower income tenants. 

Typically, I also avoid paid education because there is so much free content.