Do nothing...the tenant isn't renting that area and has no right to dictate how you use it as long as it poses no security/safety risk to them. 

While I'm not entirely discouraged, I feel like I've invested significant resources (LLC, website, domain) without securing a deal that generates cash flow.Any advice or guidance would be greatly appreciated. 

Section 8 tenants are another way to secure rent payment with government backing.The Midwest is a solid market for rent growth, cashflow, and decent appreciation.Look at a market like Lansing, MI.

Sometimes it’s the smartest move to gain liquidity and to secure your position with your remaining properties.

Building out my portfolio with strategic, secure passively cash-flowing assets to continue to build leveraged equity.

I’m curious, what’s been the biggest hurdle for you when it comes to securing funding for your real estate projects?

Well there's a reason they screen their borrowers, secure their loans with a first position trust deed/mortgage and charge a small fortune to make such a loan.

You may or may not wish to fix it since its likely too late to charge the last tenant's security deposit for it and also that it sounds so minor that people didn't even notice it right away.

Once the municipal/state requirements are all set, do a thorough screening for any prospective tenants, have a solid lease ready to go, and take move-in pictures to have on record for any security deposit deductions after they move out.

After securing a deal, your focus will shift to closing, finding tenants, and setting up efficient management.If you haven’t already, building relationships with local agents, contractors, and property managers in PA can save you a lot of time and hassle