Quote from @Stuart Udis:The point I am making is the decision the GP makes is circumstantial and very specific to the fact pattern of their particular deal and to tie back to my first post in this thread, who that decision maker really is is important. there's also one large fund that makes money when interest rate increases as they purchased a swap before rate hike lol so there's that, one out of ten folks are doing the right thing. most of these newbie GP, they just follow their teacher, so their teacher is telling them to switch from debt to floating when rate is near zero, there's article on realdeal that mentioning that. bad teacher i guess lol 

I'll DM you a blog I did on other great tax strategies I've used for my house hacks in Colorado Springs. 

Great beginners guide: https://www.biggerpockets.com/blog/wp-content/uploads/2022/08/Ultimate_Beginners_Guide_BiggerPockets.pdf3.

Here is a list of lenders specializing in these kinds of loans:https://www.biggerpockets.com/member-blogs/2810/50272-list-o...

This could be ugly for people who own STR's in Hawaii.https://www.sfgate.com/hawaii/article/hawaii-short-term-rental-vacation-bill-19382321.php

If plan to invest out of state it'll be crucial to develop your core-4: https://www.biggerpockets.com/blog/core-four-real-estate-tea...Having a solid team around you will be fundamental to your success.

Your friend building one house isn't even 1% of 1% of 1% of the housing inventory delivered. 2% is modular construction this article says.

A great property can turn into a money hole with a bad manager.There are plenty of articles written about states to avoid.

@Forest Wu Here's an article with additional FAQs on cost segregation studies that you may find helpful.

@Grant Gibson I have attached an article to read that will help in your search.