We used ALE relocation services and they were great, you can register on their site when you have a vacancy and they will let you know if they need you but it is somewhat based on luck if they need you.  

I always research companies first before doing business, but that comes from my training and working on security issues, especially after having my sites hacked. 

However, sellers currently on the market are more likely to accept lower offers, giving us some room for negotiation.Rental Market TrendsThe charts below are only relevant to the property profile that we target.Rentals - Median $/SF by MonthRents held steady from September to October, bucking the seasonal trend.

They don't connect with a lot of apps and other vendors though, and their site and services are clunky. 

Does anyone have any resources or contacts where we might get some guidance?

Hello guys I’m new here, just found about this site.

They used their money, time, and resources to offer you a complete investment, including in-house management. 

https://www.doorloop.com/blog/transfer-rental-property-from-... is a good resource.

Is it still relevant?

Quote from @Tessa Tsui: You claim to have read those articles before, but you are using the wrong terminology and asking a question that is clearly answered by the resources Russell provided.