STR rules and regulations changing is definitely a risk factor.

Currently a structural engineer so that definitely helps with some of the real estate issues!

Tenant was evicted legally, filed for write of possession since tenant was still there, sheriffs office came out and removed the tenant.

To be honest I would spend more money and get my 1% on North of Baltimore.You should be able to get more than 1% around 21213.FYI, Baltimore in general housing stock is old, when you do moderate renovation like paint, vanity change, new carpet etc... you will definitely have plumbing issues along the way.I would strictly do section 8 in 21213, you can end up in eviction court pretty often othewise.

,Revise the lease: Amend the clause to explicitly state "deposit due upon lease signing, seeking legal advice, or even canceling the lease are options to consider.

You can definitely send your tenant a lease addendum saying that their dog must use the designated waste areas, and that they need to be picking up any pet waste.

Alternatively, you might be able to make the LLC your "property manager", but that too has potential legal implications as in many states to manage property it doesn't own an LLC might need to be a real estate brokerage to legally do the property management.

Only then are we able to retake legal possession of the property.

The corporate veil is really a legal matter, so consult with a qualified professional...If you are going to use the LLC for renovations, you may / should not be taking Title in the same LLC. 

Fort Lauderdale is definitely a good start for anyone's real estate journey.