TLDR; Finding landlords who are interested in arbitrage is a by-product of targeting the right landlords, creating a valuable offering, then putting in the work. - - - - - I have a portfolio of 10 arbitrage units in Phoenix and work with three landlords. 

Does this product exist?

They only have a private REIT product now. 

If you were to refi, I'd consider going with an Interest Only product, increasing cashflow.

Just because a product is more expensive doesn't necessarily mean it provides greater value.

. :) We are very competitive our products. 780 score ,25% down DSCR rates 6.875%, 30/30 Interest Only, $5027 IO, if 5 year prepay, No points.

REI Blueprint is his company and the name of a different product.

Location, location and location, REI is all about the product.

I have never known of a title insurance company that would insure a tax sale property because there is too much chance for a title defect caused by a procedural error.

In general, developers will model revenue with SAM or an equivalent tool for non-dispatchable production.