Agreeing with @Dominic Mazzarella I would go to your uncle and ask him how much he needs monthly to sell with zero down and a 7 year call and balloon at the end. 

Purchase price: $178,000 Cash invested: $10,000 primary home own use has an Airbnb/ short term rental 5 months out the year/sometime this year will try BRRRR

You can not do a pet deposit unless your security deposit is less then 1 months rent.

$100 a month is not enough for a duplex depending on age.how well do you know this market?  

In my first 9 months as a full-time agent, I sold 0 homes!

Connect with lenders and brokers, see what rates are out there, underwrite the deal and see if it makes sense after debt service. 

It has been listed for 3 months versus say 2 years. 

I was just googling today and saw a BP podcast 1,000 episode, from about 6 months ago.Some of the poster taglines mention they were a guest on Podcast 2xx as an example. 

Construction could take a year, with permits stretching up to 15 months, a timeline that’s still attractive given the return potential.For developers seeking even bigger returns, a lot split project might be the way to go.

I hired a GC to do it so they covered the entire scope of work. project was supposed to take 1-1.5 months but ended up taking closer to 2.5 months.