We thought about hiring a lawyer but the legal fees were expected to be in the range of $10k to $15k and would have taken months (if not years).

There is a wide range of sectors within commercial real estate.

She has an excellent tenant profile, but private rental home inventory is low at holiday time.QUESTIONS:Would it be too much to1. locate the owner's email or phone number and then contact them?

This leaves me $700/mo (plus $200/mo in reserves) to pay myself, which seems high for a “house hack”.Hindsight being 20/20, I may have bought out of my price range.

@Nicholas DillonRentometer can give you a rangeZillow also can give a rangeThe best source would be to call a loc a property manager or realtor and have them also give you a range as at end of day they will have most recent and updated numbers and have a better feel for where the market is at

When a builder builds a new house that meets my requirements, in my price range, I move out of my duplex and into that new house. 

You give vague answers to specific questions.For example, when someone asks about potential rent, and they provide enough information for you, don't respond with an extensive range.

You have a contact that has too much inventory.

Bogleheads was the source of most of my formative personal finance education (for ~14 years), and it’s relevant because the SWR discussions there are typically in the 2-4% range.

Temple is not part of the Austin metro area, but within a long commute range for a few.