But if it were the real check why would the company use a hand-written font and then somehow digitally sign it with messy cursive in the same exact ink style as the typed font?

Avoid PMI and then go to a local credit union and get a heloc after closing to gift the money back.Have this as a tool in your tool belt but pursue use of the 3.5% FHA, knowing that you will be at a competitive disadvantage if you are competing with non FHA buyers, then you can call in the favor from your gift person.Just know that if someone gifts you down payment money, your bank will require them to sign a letter stating that it is in fact a gift that doesn’t need to be paid back.

If someone has been given POA maybe they could sign it.

I have already signed it. 

Reason: I signed a new job offer at a nonprofit yesterday and having extensive knowledge of the real-estate market in Philly would be very helpful.

Quote from @Matthew Irish-Jones: @Alan Asriants I continue to BRRR year in and year out.  

Its doubtful that the municipalities involved would sign off on a condo conversion or subdivision, as their aren't many rentals in the area.

Install cameras around the parameter of the property today; post no trespass signs; change your for rent listing. 

For example, for any lease-related activities (negotiating terms/pricing, signing lease, etc.) could I just have a real estate attorney on retainer to do these activities? 

Might have a tenant that will sign a ten year lease and drop some money into the space.