I can't give a tutorial re how to originate a note today, selling a house with financing in just one post. 

If you do sell, a 1031 exchange can help defer taxes.Good luck! 

Should i sell my business to get this money?

We have 60 rentals12 air bb units, Ohio  and Fla. 15-20  flips and wholesales, between buy and sell close at any point. 

There gonna sell you the stuff they can't or won't do. 

- Renting it Out: The likely rent I'd get in this area will cover half my mortgage payments at the moment- Add Square Footage: Taxes will likely go up significantly- Build an ADU: Overall ROI will likely not offset much since it'll still be counted as value tied to the one house- Selling Off Land: Sits on .5 acre that I might be able to sell.

Me and my wife have decided to sell our first duplex deal after 4 years of holding it we have built over 250k of equity wow ! 

I think you'll more than make up the price in higher selling price.

I decide to sell.  

They do not take into consideration the revenue from the STR business as part of the selling price.So if comps say the duplex is worth 500k, then it is worth 500k.