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.

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

Can I use her security deposit to cover these legal fees I've incurred due to her not moving out?

The judge granted a judgment for eviction in my favor and I then filed a writ or restitution.

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.

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.

Therefore, Val was totally right to ask about the security situation.

So does the time to secure a property for sale, insurance and taxes will accrue.

I think what I need is to find a lender partner that will work with me to secure 3-5 properties over the next year. 

Congrats on securing a good job!