@Henry ZhuI am not familiar with that market, but check out furnished finder for stats on your market!  

Using Loopnet or Crexi identify the top Commercial agents in that market for your type of investment. 

I’m buying a truck-plex and the rent for each unit is under market value by $125-$150.  1. 

They, and their agents, oftentimes go online to check and see what permits were pulled, and work done.

You can join local real estate investment clubs or online forums to expand your network.Start small: Since you're new to real estate investing, it's a good idea to start with smaller properties under $400K.

Agents help us with operational tasks such as tenant screening & applications, leasing, marketing and listing management, reporting, owner onboarding, phone & email support, maintenance requests, admin support, overnight support, nurturing relationships with realtors and relocation companies, graphic design, bookkeeping, sending owner statements, managing collections, and other back-office tasks.I have some agents in LATAM (Argentina, Bolivia) that I can make introductions to.

Delhi's growing market further enhanced its appeal.

Bennington's growing market further enhanced its appeal.

Probably any of the online shops like CE Shop or Aceable agent. 

This is simply due to Philly's market allowing for great rental to value ratios.