If I was to trade a $300k house for a $310k house that will cost me $10k and $347/month what amount should I ask for to make up for these losses?

From 2nd Mortgages to 1st MortgagesWhen I started, PPR was buying primarily 2nd mortgages. 2nd mortgages is essentially loss mitigation (helping the borrower get back on track and stay in their home).

I was so sorry to hear about your loss. 

There will likely be a partnership return required where you flipped a house with a partner and lost $120,000.If you sold the other property within the same partnership, it will also be reported on that partnership return.The net result to you is that you will receive a K-1 showing your income / loss which you then use to report on your individual return.If you made no money within the same year, you likely pay no additional taxes / get no additional refund.Best of luck.

I even try to unsell them on the business by sharing my financial losses, litigation,  market shifts, permit purgatory, shady contractors,  clouded title issues,  paranormal activity, squatters, mold, etc.

For the 15 + years I’ve been on BP I’ve seen this reasoning, though there’s less of it in the last 5 years.

However, as W2 earners, these losses are considered passive and can only offset passive income unless you or your spouse qualify as a Real Estate Professional (REPS) by meeting the 750-hour and material participation requirements or STR is used.

Should I just chalk it up as a loss and move on?

What happens if you lose on it, you now have an additional liability, not just a loss of money.Are you planning on keeping the current property or exchanging it (1031) into something else?

Please keep us posted as you and so many in SoCal are experiencing genuine hardship (whether it's the loss of a home, belongings, jobs, etc.).