If you are not familiar with the neighborhoods, school districts and sometimes individual streets you can burned.  

Essentially being paid to live in a bigger place.

I've been doing property management for almost 15 years and screening is the most essential for making sure the tenant pays and cares for the property.

May I ask, is your property, even though purchased through wholesaler, is it in a good school district, and in safe area?

Both of those are essential to know if you want to be a good wholesaler.When I first started looking into real estate investing my first thought was to wholesale.

Thanks, @Neal Collins, you're absolutely right: I'll need to do a lot of homework on the mortgages, taxes, potential fees etc. for any given property.Another big reason I'm doing this is that there are a lot of attractive reasons to go from having an external office for my business (which is currently the case) to having an in-home office that would be tax deductible and essentially give me a discount on my house payment.However, another consideration that I must be careful of is that with seller-financing, a seller can sell the house as-is with possibly a huge number of repairs/some deeply fundamental repair needed.

So essentially if 75% of my rent covers more than my mortgage (which it does and should) then my debt to income will be lower according to lender's standards. 

She mentioned that, from a tax standpoint, if  I don't have partners on the properties that I pick up, I could essentially hold them personally.

You are essentially doing this with a duplex, and I see no reason not to do it again if you can find the right unit.

My two immediate neighbors are renting so I know this is a good place to rent and excellent school district.