If she balks, and says she accepted your offer in writing, you have to perform or back out and lose your deposit.

Normally I would go $750 first unless you have a reason to believe the lower rate ($700)  is correct (not as big as your other units, located more poorly, bad parking, funny layout) If you have a specific tenant he wants you  to accept at a lower rent to get it filled do this only if the tenant is qualified otherwise and you are happy with it.

Make the house appeal or at least be acceptable to the broadest audience.

Put in any offer, even if you know it won't be accepted, it will get you used to your systems, and learn negotiating skills for the real deal!

We used financing on both occasions, but we got our offer in first and the seller accepted it.    

The  "advantage" the listing agent has over other agents is they know the amount of bids that were accepted and the contract was not turned in or ratified. 

This comes from changes in Generally Accepting Accounting Principles (GAAP) adopted by the Financial Accounting Standards Board which is also in concert with international accounting rules.

Lori, really not possible, a market cap rate is only used by an appraiser as a rate generally accepted by other investors, which is nothing more than an educated guess of an opinion as actual cap rates are historic and only applicable to each unique investor.

The accepted standard for expressing interest rates is as an annual rate.

I frankly had to lower pricing and accept work from a bigger geographical area in order to stay busy.