@Dav PohoteThe answer is it depends,Currently you may be much better off at 15 years due to where interest rates are but when they were 3-4% you could have invested the delta between A 15 and 30 year payment and achieved a return better than the interest you were savingIt’s also a personal preference where people like to have less debt and sleep better at night - I am 100% with that being the reason to do 15 %For example for us our primary is 30 year at 3% and we have a rental that we 15 year at 2.5% and reason we did 15 year on it was it matures the year my son will go to college and we did not “need” the cash flow during this time so we were like let’s have it paid off and then it’s cash flow can be used for his schooling or sell it to pay for school.Lots of things to consider and each situation should fit your needs

What's your main objective that you are trying to achieve?

.- Seeking properties that can generate $2K+ a month in combined rent after factoring in property management, insurance, and property tax expenses.Seeking Advice:- Would purchasing two houses in the Midwest to achieve $2K+ cash flow per month be a sound strategy, or do you recommend alternative approaches?

To achieve the "secret status" it's not easy- all accounting has to be separate silos. 

(A multi-family, if you can afford it, achieves the same goal.)My two cents at least.

Cost to rehab to achieve that ARV?

However, achieving success in e-commerce requires a well-thought-out marketing strategy and reliable logistics.Now, let's talk about dropshipping.

This means that the Spanish government's rental price index will force us to achieve a paltry 2.5% gross return on our premium area apartment.Additionally, the situation with "squatters" (Okupas)  is worsening in all areas of Spain, including in areas considered "ultra premium" such as "La Finca" in Pozuelo de Alarcón, where footballers and singers reside (Cristiano Ronaldo lived there when he played for Real Madrid).

I’m also curious for those who have achieved early FI how many doors it took.

All of the part time, or one-off STR owners just don’t have the same experience to achieve actually optimized STR results.