Through this journey, I’ve built strong relationships and developed valuable expertise in:Researching micromarkets and identifying comparables, potencial Accurately estimating construction or remodeling costs.Securing fast and reliable financing through partnerships with two top hard money lenders in Texas, offering competitive rates.I’m on this platform to connect with capital partners who are seeking an annual ROI of 12%-15%.

Staggering when you start to scale this.Dan, Thank you for the valuable advice!

NEVER borrow from a 401K, you are taking pre-taxed dollars and paying it back with after tax dollars, you do not get to return the loan with pre taxed dollars, in addition, some 401K plans do charge interest and maybe even fees, and lastly if you get laid off for some reason, it is a distribution with all the "fun consequences: tax at the last dollar rate, and if you are under 59.5 there is also the additional 10% penalty.Personally I like the HELOC, however you can also sell stocks and do tax harvesting there to offset gains if that is an option

It will make the loans more valuable if you ever decide to sell them and decreases the chances of default. 

My view is the insurance is not only valuable if it is used.  

It sounds like you navigated the challenges well and gained valuable lessons for your next venture.

You don’t get to just expense the additional real expenses.

Additionally, are there any other factors I should be considering when purchasing a duplex or triplex?

Real estate wealth is built through long term price appreciation, property becomes (usually) more valuable over time, especially if purchased in areas that have either gone through development or redevelopment.  

I agree and additionally I'd recommend going down to the store and actually feeling them.