If you are wanting to add more properties, it probably makes sense to pay the regular payment and save additional cash for other opportunities.  

So I'd say the seller(s) should consult with an attorney or accountant, but it's possible they may owe much less than 15% or nothing.Also as Account Closed said, seller financing is also often attractive to people who are concerned about taking a big tax hit in one year - instead it's "pay small amounts as you go, over time as you receive the money" and is great for a number of reasons (no or a favorable interest rate for you, no bank BS, build long-term relationships and credibility with future sellers, possibility to discount in future with a payoff offer, etc.).It's worth having in your mental toolbox even if you don't use it on this deal.

An all cash, no loan transaction).For this reason, I calculate both cash on cash vs. total yearly return on my out of pocket money (which includes the down payment).Also note that usually you pay the first month of the mortgage in addition to the down payment, plus the whole of the insurance and (some) taxes at closing.

He is selling his condo off the market for a discounted price since it needs some work and also he wants to get rid of it.

Not working more hours than that (750) for any other income.Then I realized that when managing multiple properties there are additional rules and to get around it one can permanently elect to treat them as one but then it could fire back when selling one of the properties... and then I am lost.Can you recommend prescriptive guidance on it?

Happy to provide additional information as needed.

Recent Aspen sales also closed at more than 15 percent below listing price, a rare discount.

I was wondering about if there was anything I need to do in addition to just filling out the lease and getting the SSID ect...

Have an additional $100K for more acquisitions.

In addition to education, focus on networking and thinking of what you can bring to the table (if even it's small... bring your ideas) when you reach out to experienced investors.