If I got a home equity loan for Property 1 and used the proceeds as downpayment for Property 2 and then got a 2nd loan for the remaining 75% purchase price for Property 2, when I sell Property 2, can I use the Property 1 loan as part of the cost basis for computing Property 2 capital gains?

Mainly the Brokerage is for me just to sell the properties that we fix and flip and save the commission.

Quote from @Meliisa Lee: I recommend splitting the properties or selling them off and splitting the proceeds.

Those condos sell for around $2 million, but they rent for $400 a night.

This growth seems a bit slow for me, and it might not be best for selling.

@Sean Gallagher check the RBP addendum there is usually a clause saying if the property sells that the RBP can be canceled and the services are no longer provided and the charges don't have to be paid. 

Not here to sell anything.

Of you’re tired of endless negotiations, shotgunning offers to sellers who have no intention of selling, or chasing every “deal” that’s never going to be sold at a price an investor can profit, give this method a shot.  

I do know coaching/mentoring/selling programs can be good money, especially if a person knows how to market themselves or has a bit of prior exposure.

If you sell your full interest you may get push back but contracts in MN are assignable unless otherwise prohibited.