More compromise on your standards on your part = more demand from them. etc. etc. 

You can try talking to her, but if she can't be convinced to compromise you can't force her to change.

There are good people who do not have the qualifications to get a higher paying job and sometimes it will compromise your current living situation.

You may decide to start by offering a lower number with the intent to negotiate back and forth to arrive at a compromise number that both parties find acceptable.

That said, I still would like to reach a compromise with the tenant, I'm not trying to over charge them for anything.

All in all it depends your experience and what works for you but in the deal you mentioned, I personally don't think 50k buffer is enough to warrant getting yourself into that deal and compromising your criteria that much.

Usually there will be some compromises with zero down.

If you are concerned about not being paid monthly or believe the advance payment will guarantee payment you are compromising your screening standards and should not be accepting this tenant for that very reason.

Anything further compromises my right to privacy.You can, as a landlord, take legal steps to eject an animal who behaves in an aggressive or unattended manner, service dog or no.

So these are the variables I'm considering right now, and I'm trying to figure out what expectations are reasonable and where it makes sense to compromise.