In the $3000/month range, you deserve a lot better than this.

I invest in Pennsylvania where I find to be some opportunity there in terms of cash-flow particularly with multi-family within the $300,000 range and even lower. 

Maybe it's a small town and there are very few homes available to rent and there are several families that would rent there if there were available homes in their price range. 

The average for the small unit is probably in the range of like $25-$50/month. 

If you would like to see the difference in websites, you can check out ours...the link is in my bio....it's a vast difference!

We will use the high end of this range ($100k)   This implies the initial negative equity position is $150k  $150k (initial negative position)/$350 (cash flow) takes 428 months to recover the initial negative position (35 years).  

The average LTR for the area for a 2 bedroom ranges anywhere from 2400-3400 (in the summer) the town I'm in is an extremely sought after place to visit also it is very close to D.C so rent tends to be on the higher side.

So I’d call it a wash.That puts the cap rate in the 9 range.  

Not sure what the returns are on a 6 bedroom for rents are but those would be your numbers.As far as new construction versus existing, I'm not seeing the gaps that big in any size range. 

The vast majority of "regular" or traditional (Conv/Govt) mortgages are originated by specialty lenders and brokers and are sold in the secondary market to provide yield on bank balance sheets (think Chase or BoA) or to be securitized into MBS.