I used to live in the lower mainland but invested where the numbers work like Vancouver Island or Northern BC.

Tenants in lower Classes will have lower credit scores, which means higher chance of defaulting on their lease payments.

There are aggressive lenders out there with lower fees for experienced flippers.  

that we’ve learned in our 24 years, managing almost 700 doors across the Metro Detroit area, including almost 100 S8 leases:Class A Properties:Cashflow vs Appreciation: Typically, 3-5 years for positive cashflow, but you get highest relative rent & value appreciation.Vacancy Est: Historically 10%, 5% the more recent norm.Tenant Pool: Majority will have FICO scores of 680+ (roughly 5% probability of default), zero evictions in last 7 years.Class B Properties:Cashflow vs Appreciation: Typically, decent amount of relative rent & value appreciation.Vacancy Est: Historically 10%, 5% should be applied only if proper research done to support.Tenant Pool: Majority will have FICO scores of 620-680 (around 10% probability of default), some blemishes, but should have no evictions in last 5 yearsClass C Properties:Cashflow vs Appreciation: Typically, high cashflow and at the lower end of relative rent & value appreciation.

So when I get multiple bids and one is significantly lower, I don't think of them as a deal.

The house is in Woodforest though so rentability might be lower as well increasing vacancy risk due to high rental costs. 

We will then, as the units turn over, get rents up a good bit further with additional design improvement renovations and hopefully reno into lower interest rates when they drop or at the very least in 5 years on our 20 year we'll have paid off enough to refi into a smaller loan.That is the only kind of smaller deal we can find in neighborhoods where we want to buy now. 

A 4 bedroom would have you competing with larger condos or townhouses with pools, a much lower rate of return. 

The house I will get is in a lower income area, currently worth $95-100k, and she still owes about $25k on it.

When you bring in intentionally say 20 million illegal immigrants you lower the wages on lower income people both by their wages and increasing their cost of living thru more competition for resources.