Looking to start a cashflow portfolio with multi-tenant properties.Please feel free to suggest other places too.

Can't you perform better buying 50 units in a market that perhaps has a higher cost of entry but due to better fundamentals experiences significant appreciation?   

truepeoplesearch.com is free and decent.Paid services are definitely going to be better. 

Local real estate investment groups or meetups can be a good resource for recommendations.If you need specific lender referrals or have any other questions, feel free to PM me.

DSCR would be your best bet but again 25% down and a DSCR of 1.25% minimum.Do yourself a favor and do not let just any Lender/loan officer pull your credit just so they can take an application and have a possible deal.

Also recognize that construction costs will be 2-3x more expensive in this area than they were in Pittsburgh so be careful and make sure to understand pricing before going into a rehab. 

If you haven't tried this yet I'd recommend playing around with some of the BiggerPockets calculators here https://www.biggerpockets.com/investment-calculators If you have a pro account you can use the calculators as much as you'd like, if you have a free account you do get a few free uses of the calculators!

Just understand that most wholesalers are inexperienced when it comes to rehab costs.  

I work with CSSI who are the nation's premier engineer-based cost segregation firm with over 45k is completed studies. 

Feel free to PM me if I can help.