Congrats on your success so far.Some random thoughts for you:- It might be difficult to tap the equity in the rental at this time given the current state of interest rates. 

In-person interactions are great for building trust with potential investors.Real Estate Platforms:BiggerPockets: A robust platform for connecting with private lenders and investors.Fund That Flip, PeerStreet, Groundfloor: Online platforms connecting investors with real estate projects.Social Media Groups: Facebook and LinkedIn groups dedicated to real estate investing often have private investors or lenders looking to connect.Personal Network: Often overlooked, but friends, family, and colleagues may know individuals interested in investing.Private Money Brokers: If you're working on wholesaling deals, you may find brokers who have established relationships with private money lenders.Real Estate Agents: Some agents have connections with private investors, especially those focused on investment properties.For your 50% LTV, it's good to approach investors who may be interested in lower-risk, high-equity deals.

It can be a positive for short term rentals (if in a good area) to be near the airport.

The money borrowed from your equity comes with interest, then you have the new mortgage with interest.

Additionally, the price point is still cheap enough to find the 1% rule and positive cash flow and there's amazing appreciation potential! 

This allows participating in the $1.1 M equity with a ROI of 100% and on going 25% annually with the historical appreciation over 30 years of 8% a year. ( Zillow stated a 10.4 % in the last 30 days $251,361 ).

Curious thoughts on the following scenario.Current SFR with $51k loan at 8.125%, just purchased with around 10% built-in equity on the property, $250 monthly cashflow (post expenses).

Using my slow days to fill work for employees and build equity.  

After a year you finance, it gets into BRR situation that is no money from your pocket as equity takes care of downpayment and you own the building.

Try to be positive and understanding since there were lots of factors that led to delays.