I figure the upside to the rental scenario is, of course, investing in multiple properties, while a downside would be having to most likely get a conventional loan on the second house with 20+% down and proof of sufficient enough financial reserves to handle two mortgages. 

We have visited the market multiple times in the last six months but remain uncommitted to expanding. 

Despite multiple requests (and promises to do so in text messages) across the span of months, my partner never uploaded the relevant information on this client, including the invoices.

It’s definitely possible to refinance multiple properties under a single loan, often called a portfolio loan, but it depends on the lender.

Close proximity to NYC, the nearby state park, and a destination by itself for certain people.

Perhaps the SFR market is overvalued now and 1% rule is just a simple valuation tool like a P/E multiple in equities telling people to stay clear.       

Does our money get spread across multiple notes in a fund?  

Looking to hear what you would do - I've heard of people targeting 1031 Investors to sell large portfolios or multiple buildings but have no idea where I would begin outside of asking a community like Bigger Pockets.

Quote from @Bill Warren: I was hoping to find someone who could help me transfer properties out of my personal name into a series LLC or multiple LLCs.

I have been able to do this for both purchases and cash-out refinances on multiple deals for clients of mine.Typically your max loan-to-value will be 75-80% LTV, but this specialized program will limit you to 10% LTV/LTC less than what you can traditionally do.