I have a margin that I operate on, period.

I am in Michigan, which has the 6-12 month redemption period after sheriffs sale.  

Everyone knows the 3% or 4% balance transfer fee, but compare the fee to the interest you will pay over the same period with a traditional loan.If you have $10k in debt at an 8% interest rate with a traditional loan versus $10k of credit card debt with a 4% fee and keep both for a year (making minimal payments), you will pay less interest with the credit card.

I'm always looking for ways to be more efficient as a landlord.

What is your plan/goal - 1 year to 50 years down the road (yep be that deliberate if you can to be that efficient in all things at all times). 

Efficient negotiations secured the property for $200,000 on favorable terms.

You will get efficiencies of scale with chemicals and service calls.

@Butch Greene, they may have lived in their primary residence a short period or profited so much as to exceed the tax exemption amount for selling a primary residence.

Sometimes tenants just don't let you in period. 

Overall, just want to fully maximize on my time, and making sure I am doing everything in my power to be build up my portfolio as efficient as possible.