For bookkeeping purposes, I recommend designating a separate bank account exclusive to the house hack activities to keep some sanity.

I wrote the above for informational purposes.

I wouldn't recommend this for research purposes. 

Rentals was not a thought to me in those days I was a land flipper.. had absolutely no interest in being a landlord.. and basically still dont to this day :) yes I have some rentals for tax purposes but not really for wealth building purposes.

As we move into 2025, these trends are shaping how we approach renovations:Open Floor Plans with Purpose: Open concepts remain a top priority, but it’s no longer just about tearing down walls.

They can rent the property they purchase to you (or anyone).The property must be held for investment purposes for at least 24 months immediately following the exchange.

I house hacked both the properties I have and thought I should put them into LLCs for liability purposes, did not realize that I would have trouble getting a HELOC in the future.

Can anyone recommend software which would accept monthly payments (from me to seller) and create proper 1099 forms for tax purposes at year end? 

This is for basic informational purposes I am not an attorney and this is not legal advice.First, if you offer to purchase a property using a HELOC to fund the purchase you cannot later back out of the agreement because you couldn't find PML or investors.  

Are you building for pure investment purposes or are you looking to use some of the space for personal/personal business use?