For example, 3'0 doors instead of 2'6 doors (space permitting).

There are more and more lenders allowing for STR's on 30-yr products, and the space is becoming more competitive, which is great for investors!

Maybe studying all of this is unnecessary, but at the end of the day, the more you can perceive change in the RE space, the better you can adjust your strategy and criteria to profit in the market.

If you’re residing in one space and renting out the other space, do you have to apply for an investment property loan or will a conventional loan work?

I am curious if anyone has experience in this space and would be willing to discuss their experience?

@Neil Anthony, if you want to learn the MF space, I think investing as an LP in 2-3 syndication deals is an excellent start, especially if you are investing out of state and, assuming you have a full-time job.That is how I started.You can learn how sponsors evaluate and offer deals, listen to other investors ask questions of the sponsors, and, IMO, you can attend in-person events where you can meet other investors and sponsors and ask all the questions you want as well as hear investment stories of all kinds.Once you get through some time immersing yourself in the MF investment world, you will have a better idea of whether you want to be an active or passive investor.  

Your husband could then commute in relative comfort and use the commute time on the train for podcasts, reading, relaxing.

He is crushing it in that space.

There should be some runway in this space and opportunities.

Now, that 4/2 is a bunch of extra space that a single person does not need, it's just extra crap to clean/maintain/etc.