Is the property priced appropriate for a purchase that does not permit financing?

Check local regulations on maximum number of unrelated people living under 0ne roof. 

To gain investor confidence, ensure the investment property numbers are real, use the most common contract forms in your state (versus a 2 or 3-page) internet/guru contract form) with appropriate addenda, or an attorney-drafted form and attorney-drafted assignment agreement.

PA is super regulated state and not a state i recommend doing seller financing in.

There's a good chance the issue(s) you face has already been discussed and answered.Ask questions in the appropriate forum.

Yes, money is limited and appropriated by Congress.

If your business entity has an accountable plan for business expense reimbursements, make sure to issue the appropriate reimbursements in December.

NOPE  these are not federally or state regulated loans or lenders they owe u NOTHING.

I have never dealt with an investor who didn't physically go to the property & most look up zoning regulations before even giving me an offer!

These companies and their leadership/owners don't care about anonymity because they understand how to properly operate their business i.e. avoid negligent activity while utilizing contract management systems ensuring all vendors are vetted with appropriate licensing and insurance and contracts with  indemnification are in place.