What kind of CoC returns do start getting excited about when looking on LI?

one needs to always have release clauses negotiated and in writing in the NOTE> and Mortgage.although its common to pay prorate plus 10 to 20% more to get a property released.this is how we do our subdivision new build loans.. 

Mostly made up of 2 beds/2baths-Elevator serviced building with a large common roof deck 

Just to make sure..... verify that the legal description in Your purchase matches the legal description in; the foreclosure action, the original mtg from the previous owner, and in the deed where the previous owner purchased.Surveyors rarely make this kind of mistake, but that is also possible.If all the previous legal descriptions are the same, dating back to when the house was actually built, are we to assume that whoever built the house just “guessed” at where to build it?

In addition, if i were to find a bank that offers this package, what kinds of hurdles should i expect to encounter before loan is approved (e.g. appraisal, state/local ordinances, etc)?

Also, let me know what kind of investing you personally lean toward and why.

Sub 2s are a little quirkier and even less common but it's a possibility. 

How do rates vary from conventional investor rates on these kinds of loans?

Once you sell a particular property for a profit, that profit must be rolled into another property of "like-kind" within 180 days of the sale. 

You can also look at each of your AirBnB 'comps' in your area and see if there is a commonality among the property 'hosts' or 'co-hosts', and if there is, I'd suggest you reach out to that person to learn more about your local market.