If not, should I sell stock that I have that has capital gains that would be due on it and offset that?

As a US citizen I have an SSN, file taxes every year on my foreign employment income, hold US-domiciled assets (stocks, IRA, 401k), and I have a ~15 year credit history with a decently high score.

Quote from @Alex Patton: I know there are hundreds (thousands probably) of lenders out there that offer a DSCR product.

If in your shoes I think I'd call sellers bluff and put em against the wall of it via how I construct the purchase offer.

This will provide insight into making informed decisions and accessing the benefits that these properties offer.

My offer got accepted for an investment property in Pennsylvania.

great advice provided - what I will add to this is if you have smokers and its not allowed I would offer to allow them out of the lease with no penalty. 

She is offering to refinance one of her homes that is completely paid off.

I have recently worked with a company that has an excellent offer.

Of course, if we have another available unit that's similar to the one they were looking at, I'll pivot to that and offer to move their current application over to that unit as long as they would still qualify under whatever the new unit's rent is.