I'm a wholesaler, are there any important questions I should ask them before adding them to my buyers list Pertaining to what type of lots they're looking for? 

My question pertains mostly to her.

Again a regional issue that might not pertain to you, just as an example a custom home we are getting ready to build will have 120k of sitework and engineered foundation work before a board is cut to frame.  

I am also open to any other advice pertaining to wholesales.

For some of these houses I find, it seems like the owner died and then nothing happened…like no one got designated to handle anything pertaining to the house, so it just sits there. 2) If it is possible for someone to die and no probate process occurs, if I track down a next of kin and they are willing to become the executor because there’s some cash in it for them, what’s next?

That will give you a pretty good starting point pertaining to the zoning. 

But your question pertains to selling.

There is one section in particular, which really pertains to you.

I may be wrong, but from what little bit I've read, cap rate pertains more to commercial property?

@Dan ShelhamerOne of the things you should have requested with your offer is a copy of all leases and service contracts pertaining to the property.Once you review the above information provided by the vendor, create an estoppel certificate documenting the length and conditions of the tenancy and any other considerations or agreements between the tenant and Vendor.