It really depends on where and what you are looking to do.

@Chanel Snerling where in Metro Detroit are you going to build a duplex?

I'm not the underwriter who approves the loan, I just know what they need which is usually a thorough overview and proof of recently completed projects, where you were the GC. 

The townhouse is located in Aspen’s sought-after lodging district, where STRs are fully permitted.

Make sure you know the rules in the state where the property is located.

Not much, but something to keep in mind.They are all good options, I would also recommend a place where you are physically the closest to or can get to easily.

Where in New Jersey is it located?

Heya Ethan.I've completed 7 secondary suite renovations/developments now and it is extremely difficult to do a true BRRRR where you pull every dime back out again after you refinance.

Will depend on several factors like the type of property, type of tenants, your risk tolerance, other assets you own, your estate planning, laws where the property is located, etc.

I assume you got a better interest rate, and I know you are saving a boatload of interest. 3) imagine year 11-30 where you are cash flowing thousands with paid off properties instead of hundreds because of these lean 10 years. 4) hopefully you can raise rents at least $100 each every year and in 2 years your cash flow neutral even with preferred short term mortgage.