Tax accountants, investor friendly agents, 1031 exhange experts etc.

Typically when you see "cash only" the agent doesn't believe the property can pass a home inspection which isn't relevant for construction loans in most instances and there are plenty of banks, hard money lenders etc. who offer construction financing on distressed buildings.

Cold calling, mailers, signs, google/Facebook, RE meetups, RE agents are all ways a whole sales would find deals

(Pending the outcome of the state bill on property taxation of STRs.)Also, how long have you owned?

Do number, size, or area of investments owned play the biggest role in that decision? 

Hey I am an agent in Salt Lake, if you haven't already run comps feel free to reach out and I can send them over to you.

The owners at the time were directed to our Real Estate agent and she showed us the property as it was a good investment opportunity.How did you finance this deal?

Specifically, I am looking at partnering with an individual who owns securities (stock and mutual funds) having them take out a line of credit against their portfolio (SBLOC) at a low interest rate, and using that to purchase properties rather than using a mortgage.

I would visit local meetups for real estate investing, and also network with agents in your area that work with a lot of investors.

Every property will bring its own lessons, so just be ready to roll with the punches and use what you learn to make your next investment even better.