The last thing you want to do is buy this property and end up with a lopsided deal if the ARV is significantly lower than what the wholesaler claims.

They often do this by marketing directly to buyers or leveraging platforms that connect them to potential buyers without involving agents.

Hi, does anyone know any lender that can do HELOCs on investment properties? 

Go to the website yourself.   

It is quite complex and heavily manual and opinionative (a lot of decision comes from intuition). 

We do have renters in our previous home in Auburn WA. 

I found a MHP that I am interested in possibly buying and came here to see what information I could find to help me determine if their asking price is reasonable and how to determine its value myself. 

Thanks for the suggestion  What do you mean "an option?"

What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?

I think they have/had like a $500 grant for lead certification if the landlord himself was low income, but that's about it.