Owner's share of the interest on the underly mortgage paid in 2023 is $5,000Owner of (shares and lease to) unit A has mortgage against that unit with a current principal of $800,000.

She paid $115,000 about 7 years ago, and lived there up until a few months ago. 

However, they also make a ton as I paid $20k-$30k/door. 

.- $968 difference paid out over 12 months would be $80.60 per month MORE.The mortgage company is claiming that I owe $3,000 MORE in escrow and is charging me an additional $250 per month.I checked with them and I've NEVER missed a payment and have been up to date this whole time.They say its not a mistake but couldn't explain why I owed $3000 more instead of $968 more for the year.Am I missing something? 

Based on what you described you will be incurring significant expenses renovating the building.

Overhead/maintenance will be more expensive, make sure you factor that in.

Currently all properties are fully paid for SFRs.  

Also, keep in mind that as time goes on, unless there is a major catastrophic financial crisis, rents go up, your equity increases over time and the loan gets paid down, and your cash flow becomes higher. 

Around 2% in some of the cheaper areas, up to 3% in the more expensive tax areas. 

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