PA used to not exempt from state tax. 

If no consideration is being exchanged, then all you would need is exempt stamps for State and county. 

You can look into the ATI exemption, but I dont know if it applies to vacation homes.

As a 100% disabled veteran, I’m exempt from property taxes on such properties, which makes this strategy even more feasible.

Lastly, if you’re currently taking a homestead exemption on property taxes, once that drops off (if you’re currently taking chose to transfer the exemption to your new home) your property taxes will likely increase $1k-$2k thus increasing your monthly mortgage.

There is a "sponsor exemption" but that only allows an unlicensed person to raise money but it cannot be more than 50% of their duties and the pay they receive cannot be based on how much they raised.If you have never raised $, a family office will be off the table as they typically want the company to ahve atleast $50-$100M in assets. 

When parents employ their minor child, the child is exempt from Social Security and Medicare (aka FICA) - if under 18.

Then again, if you’re talking about a mortgage on your personal residence, and you live in a state with an unlimited homestead exemption for creditor attachment like Texas or Florida, there’s an asset protection consideration as well.   

In most states there is protection in your primary home through the homestead exemption, your investment properties must be in a separate entity.  

The IRS has a regulation that amounts less than 15K are tax-exempt, of course, this requires you to file a tax return.