However, I am 100% pushing my teenage children to attend college and focus on subject related to RE and Finance, and after I will if necessary guide them accordingly. 

We had to do a 5/1 ARM mortgage, where our interest rate was locked in for the first 5 years at a pretty good rate, but would be subject to change in 2021, potentially severely spiking up the rate. 

I am looking into purchasing a property with the subject to strategy, but I dont know a RE attorney who knows about Subject to in the Lehigh Valley area.

If you going to create a pro forma for the subject and cap out the income, I would base the leagal and professional/ leasing on the history of the property.

Also, does that mean if there is renters in it, I subject them to my terms to b their landlord?

Even with low equity houses there can be other ways too acquire or assign the property, like sandwich lease options or subject to/wrap mortgage.

When you BRRR the property, you rent it , you do not sell it , your rental income after expenses is subject to ordinary income tax but not considered self-employment tax.Scenario 3: ( Which is the scenario you fall under) Your cash-out refinance is considered borrowed money from the bank and can not be taxed.  

I’m sure there has been a prior post on this subject, but I’m having trouble finding a clear answer.

@Aaron GenaroThere are plenty of discussions threads and posts on this subject.

It is going to still be very subjective, but for me the track record of the operator is important to an extent.