Because I benefit from more business oriented books I also like Who Not How and Gap and the Gain by Dan Sullivan and Ben Hardy.

First there is no reason to buy a Townhouse "all cash" instead put 40% down and reap the benefits of an extrenly low rate, No PMI and the option to escrow.

Truthfully, I don't think a Capitalization Rate of 8% is terrible plus you'll have an appreciating asset along with the tax benefits.  

Maybe even failure to take full advantage of an opportunity, resulting in a loss of potential profit or benefit.

Consulting a tax professional is key to ensuring compliance and maximizing benefits.

This will change the roi and cost benefit equation quickly.

I've been getting a card or two a year to increase my limit (indirectly lowers utilization as well if you don't charge it up) - it does hurt the overall credit age though 

Trailers don't go up in value like conventional houses.In my opinion to get the true benefits of buying mobile homes you want to own the land underneath them.

If that's not the monthly income, you are arriving at your cap rate by using incorrect expense ratios/expense figures and/or the property benefits from an extremely favorable tax abatement which skews the operating costs.

Debt-Paydown and Tax Benefits are also a result of time.