In other words, two financing agreements "wrapped" together.But the goal here would be for the 2nd buyer to close all-cash (to skip the financing process), would that still work? 

Personally I like 1 savings and 1 individual checking for each property.

There are plenty of deals in Philly on and off-market from wholesalers, who are pretty decent in Philly compared to other places.You will need to get your GC license here and learn the permitting process and necessity here as well.

Follow the lease and the laws in your state and start the eviction process.

@Alecia Loveless is correct--tenants need access 24/7 to their electric service panel, water and heat, assuming those are individual utilities for each unit. 

>  Some LP want cash>  Some want alternative real estate>  Some want individual properties currently within the partnership. 

Maybe it's a processing fee, an application fee, etc?  

It's a long-term learning process, but an interesting and often profitable journey - best of luck to you!

Have you always invested in owning the parks, or have you purchased some individual mobile homes in parks you haven't owned also? 

This can be a very long and annoying process and you're not guaranteed to get approved.