I’ve done both but A is much much easier and cheaper.

I should add so many agents here, are gonna tell you this ******** about renting being a waste, but it’s literally cheaper by in some cases thousands a month when factoring in repairs, you can put excess savings into index funds etc. every single friend I have all of whom are pretty fiscally savvy have made the same calculation, I even have a good friend who is trying to sell his condo to rent because his monthly expenses will decrease when he sells his condo & he can be in a better area.

There are a lot of active rentals on the market and some are better and cheaper than mine even though I think my rent is below market value. 

My market is strong with little inventory and increasing rent rates.In my market, the monthly rent payment on a 3bed/2bath is about 40% cheaper than the monthly mortgage.

Even though HML rates are steep, when you do the math they are almost always cheaper than a 50/50 split.

It would be much cheaper and easier to borrow  against a different property. 

Renting an AirBnB usually is a better deal for them than a hotel because they get a whole house for around the same price or cheaper. 

If it is a brand new entity with 1 to 2 bank accounts with no credit cards, it might be cheaper. 

I'd bet any local University has classes applicable to commercial RE investing and management, audit the course instead of attending for a grade, much cheaper

Why add an ADU if it can be purchased cheaper?