That case will contain all the information about the borrower, lender, property, etc., etc.

For many of these borrowers, refinancing their existing loans is simply not possible.

Here are some numbers off the above scenario:Keep $340K income property  = Cash flow $2700.00 month70% Heloc borrowed from this property =  $238KHeloc Fee @ 4% =       -$793.00 (interest payment to heloc/month)I0% Note off $238K =  $1983.00 monthTotal income from rental property + Note income - Heloc Fee per month = $3890.00Should be able to write off Heloc interest (Check w/CPA). 

MH loans are difficult to obtain conventional loans on, for various reasons, low loan amounts, no comparable sales, trailer is too old, not tied down as RE and is a chattel secured note, not to mention the likely borrower issues as to why a buyer just wouldn't go buy a conventional home, low income, poor credit, lack of employment history, lack of credit, there are reasons why people would live in an 1977 Fleetwood Home, 12X60 as opposed to a 3 bed 2 bath brick home on 5 acres down there.

There is no way of saying which borrower or tenant will default except through good underwriting practices and the ability to read people, I don't miss very often and there are aspects of life, those "financial life events" that can never be foreseen in advance.As to bands of investment/price, not really as I'm an underwriter type and consider each property in relation to the market demand, market rents or collateral nature, to the tenant/borrower.

You will end up borrowing higher interest money for future investments if your cash is converted to equity in this property.

So treat him like any lender would treat a borrower - verify his creds and check his background (not hard to do these days).But once you decide to work with someone try to think and analyze as a collaborator, a partner, when you look at a deal.

Only the borrower or an authorized party can speak to the lender.  

The financed property limit applies to the borrower's ownership of one- to four-unit financed properties or mortgage obligations on such properties and is cumulative for all borrowers.

My concern is later in your post you mentioned borrowing/partnering with a friend to pay it off.then invest in something that has a quicker more guaranteed return of investment.This is the part that doesn't fit.