Here's a bit more in detail about how rates are calculated for DSCR loans:1.

PM me if you want details.

Personally I like to build with cash to avoid the extra expenses, so I dont actually finance anything until its done and I have decided to hold it.

Withoutknowing the details I can not suggest which would be right to add on.Several you should pay attention to are:- Ordinance & Law: Provides additional building coverage to deal with rebuilding costIncreases due to changes in Zoning or Building laws- Personal Injury Liability: Libel, defamation of character, wrongful imprisonment, etc.

BiggerPockets is an excellent resource to kickstart your real estate journey.I recommend that you take the time to define your financial goals and always keep learning.From insightful podcasts and informative blog posts to interactive forums and detailed guides, BiggerPockets provides a comprehensive suite of resources designed to empower you with the knowledge and confidence needed to navigate the market.

If I've left out any important needed details please let me know.

As for your lot split I am unsure exactly what you are asking but an early hurdle if you do not own the property outright is to get the lender to agree to the split and work out the details.  

Always budget extra for surprises.Skipping Permits – Even small renovations may require permits.

Alot of unknowns as you don't have the ability to walk the property beforehand, but interesting process, and pretty good deals exist there.While the Trustee Sales are cash purchases, there are many hard money options that can turn over the funds in time for the 24 hour funding required to complete the purchase.If you are interested, let me know and I can go into more detail, as well as make some other suggestions for you to consider. 

DM me with some details about what you are trying to do and we can talk.