Principal balance currently at 314kProperty Details: It's essentially a "2-in-1" property, with the main unit rented out for $1,900/month and an attached ADU bringing in an additional $1,200/month.

We're new to real estate and would appreciate advice on our current home in Texas and our future place in Oregon.We love our house in Austin and aren't ready to sell, but as a long-term rental, it would yield (from what I understand) negative cash flow, covering principal and interest but not taxes and insurance.

This would obviously reduce my cash flow on both properties, as I would be paying the minimum HELOC payment plus extra towards the principal to pay it off quickly.

In this case, since they are borrowing their payments, these would get added to the principal balance each month, and interest would be calculated on that.If, for example, the interest rate on the note were 10%, they would implicitly be borrowing their payments at that rate.

For separate entities I use separate files for each entity.

However, they approach financial health from different angles.The 50% Rule is a quick estimate that suggests operating expenses (excluding mortgage principal and interest) will roughly equal 50% of the property's gross income.The DSCR is a more precise calculation (Net Operating Income / Total Debt Service) that determines if a property generates enough income to cover its debt obligations.Deal example:- Class C middle class neighborhood- 4bd / 2ba single family house- ARV: 190k- Purchase: 105k- Rehab: 35k- Market rent: $1,400-1,525- Section 8: $1,475- Property manager: 10%- Taxes: 125 month- Insurance $1250 yr- HOA: $55 month- purchased and rehabbed with all cash.

Any taxes not owed, a seller merely file a tax return with the state, just like any other tax returns filed for extra taxes a government has with held. 

If you continue filing taxes jointly the income you realize from your separate property will still need to be explained and redacted, regardless of the type of entity holding the real estate.

Suggest you check in with him/her on this additional service as your attorney is already intimately familiar with the file and you can often give them pre-authorized amounts to settle on vs trying to squeeze all the blood from that turnip. 

I'm going to reiterate what's already been mentioned above, but I'm going to actually give you examples of why it's relevant to you to find a U.S. tax professional.1 - You're going to need to file U.S. taxes once you have property down here, there's federal filings, state filings, and sometimes local filings too2 - Tons of tax treaties between the U.S. and Canada that are easy to miss and can cost you a lot of money (important one with rentals - effectively connected income - if the professional you talk to doesn't know what this is, run away)3 - The amount of days you spend in the U.S. needs to be tracked and if you go over a threshold, all of your worldwide income could be taxable by the U.S.4 - Selling real property means up to 15% of your sales proceeds might not be available to you for years (FIRPTA)5 - Lots of nuance at the state and local levels, which both want to take as much money from you as possibleMain takeaway here is that you should find a U.S. based tax person.