I know St Ansgar well, I am from Rudd and live in Garner now.
My suggestion is you should wait until after next August. If you live there for 2 years you dont pay capital gains tax.
As you know with our -20 temps in the last week, not a lot of people are really looking hard. In the summer itll move better.
Some people supplement their income very well by doing live in flips and live there for 2 yrs then sell.
How does the grant work? Is it laddered? Where if you live there a yr you only have to pay 80% back? I got a veterans grant and it was 5yrs rolling 20% off each year.
If you used Iowa's program it has a 9yr recapture tax for profits but I dont know the details, I would ask your CPA. Last thing you want to do is sell the house and not have the opportunity to take advantage of that again and also not make much profit after all the taxes.
Id definitely suggest you talk to a CPA to figure your "actual take home profits" on the sale at 125k.
What are you going to do when you move? You'll probably need 10-20% down on your next home sinve you won'thave the grant.
As far as helping her... show her all the grants and help available to her. The things you used. Another option is to offer the 3% buyers agent commision then other realtor will be apt to show it. $3,750 is better than $7,500.
Good luck.