This leaves here with almost $500k in capital gains to pay tax on.I'm trying to find creative ways in which she can minimize this tax burden. 

Here are some indicators to help you assess a buyer's seriousness:Questions: Serious buyers will ask detailed questions about the property, such as maintenance costs, neighborhood amenities, and property taxesStrong Offer: If a buyer makes a strong offer quickly, it often indicates a high level of interest and intent to purchasePrivate Buyers: If approached by a private buyer, ensure they provide a Letter of Intent (LOI) and proof of funds.  

Here is the email received"An internal audit has been completed for STR permits and our records indicate that your STR permit was issued in error due to exceeding the maximum 12.5% blockface density.

.- Tax Advantages: Germany offers tax deductions for property owners, which can help offset some costs.Key TakeawaysService members have a unique opportunity to buy property in Germany with minimal upfront costs.

I’m also interested in getting to know your area.. as an experienced local investor - can you indicate the stability of the rental market?

They do minimal at best verification of the data the applicant provides.

In our area, its fairly "normal" for showings to happen after accepted offer to minimize disruption to tenants. 

But if you put in the effort, Detroit can be incredibly rewarding.Over the last several years, the city has been on a steady upswing: population growth, major corporate investments, and increasing demand for housing are all positive indicators.

I'm also seeing lots of homes for sale that were used as Airbnbs, so I'm wondering if that along with these numbers may indicate it's an overly saturated market, and if these are signs that maybe I should keep searching for a stronger market, or just a property that cash flows given the average annual revenue?

I know I'm getting the tax benefits of depreciation, the minimal positive cashflow, and the appreciation on the property, but It's pretty much a long term play of slowly raising rents annually to increase cashflow, which will eventually get basically reset when my loan goes P+I in 10 years.