Relationships are key -this off-market deal was found through a longtime realtor friend and my last seller financed deal was through a landlord/client I worked with for several years. 

To find value on residential 1-4 unit properties you could ask your realtor to run comps or complete a CMA(Comparative Market Analysis) on a subject property once you find it.or you can find the value on your own.We use prop stream to run comps. 

I'm an investor and realtor in the Scranton area and get a lot of off market opportunities.

My name is Jack Pasmore, and I’m a realtor and co-owner of Redeeming Equity LLC.

I know enough about a lot of things to be dangerous, but lack detailed expertise and certifications.I will say that I was extremely disappointed with my last realtors lack of construction knowledge so you will have a leg up there for sure, and you should play up that as a selling point

I went through a realtor we've been using for the past 3 years in Dayton, OH (he sells in both Dayton and Cincinatti).

Realtor might also provide a credit to you to close it out and call it a day.

Would you recommend their realtor team for the buying process or should I look elsewhere? 

Sit down with you Realtor and pose this info and questions. 

If you're wholesaling residential properties, keep in mind that most property owners will also be speaking with and meeting local investors and realtors.