Single family, 2-4 unit? 

If you house hack a single family residence by renting out  a room or two then you would have no property tax but if you buy a duplex you might have to pro-rate the property tax.  

Anything single family will require very creative strategies in order to generate cashflow. 

@Bruce Bennett this is a super important question and it doesn't just apply to lenders. 

I am a newbie investor looking to purchase my first rental property, and I have been caught between going for a single-family or a multifamily rental.

I have one single family rental now.

I singles out 3 routes, and due to funds limitations I can take only 1.1.

Petersburg area, resulting in highly–profitable investments.If you need professional and courteous property management experts for your multifamily, single family, condominiums or town home, you've found the right company!

I am going to be lending to an investor on a single family home.

You will typically need be at $500k+ purchase points but its usually worth it vs buying lower class areas or single families.