The kicker here is that rates are much lower than the 7% that OP noted.

I am looking to place a brand new mobile home on lot within co-op( I own the shares)Should I pay for the mobile home with cash, or should I finance the house ($53,000) Also, Can you refinance a mobile home within a co-op?

I guess OP needs to learn something called sub-to. 

Coin op washer and dryer.

@Curt Smith I have to disagree with you for the OP’ needs, as stated in her original questions:The OP’s first question tells us that she wants to avoid paying capital gains taxes.

@Jon Greer and the OP.

If I had 100k-250k to invest I'd diversify a bit maybe 50-50, look for group syndication as a passive investor and look for 2-3 yr exit to  accelarate/reinvest but this is me - not so interested in op mgt, just passive income.

Let's begin by answering the OPs question by using the DATA he has given us.  

Quote from @Lindsay Op de Coul: Hello Curt and @Kurt Weber,The company I work for manages vacation rentals and ours are along the jersey shore. 

I use IRR exclusively because it allows me to calculate all the multiple ways of making profits in Real Estate.To re-word the OP's scenario in a NON-IRR way, it can be as follows:Let's say you buy a property for $1 Million with ZERO down.Said property's Rents pays for ALL expenses for all of the months for 20 years.20 Years later, you sell the House.