Assuming the owner is correct on being able to split the lot...I did this in WPB, about $4200 with the process and the special survey/replat required, there probably is  no market for the cost of a new build in that price neighborhood.....having a gc build a standard house is probably $140/sf plus design, site prep, impact fees, etc.The one I did already had two houses on one 150’ wide lot.

Any tips, books, courses for beginners etc are always welcome as I am approaching this wide-eyed and curious!

I have some new younger tenants who have been leaving their windows wide open while they are gone at work all day.

Oregon just passed state wide rent control. although its mainly moot it allows rents to rise higher per year than what is reality in the free market.. were it does affect is those looking for value add situations  IE syndicaators looking to snag troubled properties raise rents real quick and retrade.. that could be tough.  

It's better to go into this eyes wide open so that even if you manage it yourself now (which will keep a nice chunk in your pocket) if your business grows the numbers will change dramatically and the deal may not make sense through those lenses.  

Generally speaking you can bank on about $5,000 minimum for a single wide.

I have a buyers list , have a single wide mobile home soon to be negotiated need help trying to have paperwork together & know how to approach park manager

I was working diligently on finding multi family value add deals in Long Beach, CA prior to the state wide rent control.

There are few that offer non-owner occupied HELOCS including PENFED that comes widely recommended.

Since most banks are have very strict lending guidelines, I didn't think it would be the best idea to waste my time finding loan officers at each one to try and find the one that might on the off-chance be able to do what I was looking for; in your experience have traditional loan terms varied widely from one bank to another?