To INCREASE equity, you will have to reinvest both the interest and at least part of the principal payment. 

We are trying to sell, but that isn't quite working out right now, so we are considering renting.

We then rented out the big unit and only paid $300 to our mortgage.

Point being - if I'm renting your house.

Thanks to the Cost Segregation Study, the property investors were able to reclassify the property into the following categories to accelerate the depreciation resulting in first year depreciation of $26,167,989.The use of the accelerated depreciation strategy helps real estate investors to reduce the tax liability immediately which therefore increases their bottom line due to the offsetting of income.

It's crucial to conduct thorough due diligence on the property to ensure it has potential for value appreciation or can be renovated to increase its market value.To learn more about seller financing and strategies for adding value and reselling properties for profit, consider studying real estate investment books, attending seminars or workshops, and networking with experienced real estate investors who have successfully used this strategy.

The first one is in the town where we live and is currently rented.

Can they even be evicted if in rent controlled apartment in non owner occupied?

Long term tenants in place currently paying below market rent at $1200/M.

Offer some incentives like paying for their move or covering the security deposit and first months rent at their new place.