Hello,I am in the midst of a mortgage refinance and I am done with initial formalities, signing the initial disclosures and providing the documentation and so far happy with the terms and It can take 30-40 days to close from today.

Noah,I'm an Army Vet who started from 0 :)I'm currently a realestate broker for Armenta Realty (CA and AZ) and a mortgage loan officer in your neck of the woods.

Mortgage marketing to real estate agents

Can I write off a percentage of my mortgage relative to the size of the rooms rented?

With commercial real estate mortgages you can use an LLC and have the partner with better credit sign for you.

I have a salary and a good amount of real estate income.So far I encountered issues as my real estate NET income looks like $0 because of depreciation, and so the DTI looks inflated since I have the corresponding real estate debt.I am looking for 300k HELOC on $1.2M property with $660k mortgage at 3%. 

I have multiple mortgages through Huntington Bank.

I agree with paying the tax and moving on only because now a days you can earn 10-12% in a mortgage note fund and have no fees, capital calls, no management headaches (syndication) and a clear exit timeline. 

Also, for house hacks generally, you cannot write off any % of your mortgage since it's your primary residence.

You may be able to purchase from B lenders such as Mortgage Investment Corporations.