SALT
Scorpio Bulkers Inc.
stock NYSE

exactly! depends on whether it makes financial sense for OP to itemize, depending on the size of his mortgage interest, but if he does itemize instead of standard deduction (recent SALT expansion makes it more popular), OP would have to discount the mortgage rate by their marginal tax rate, for example for 22%, it means 6.875%\*(1-0.22)=5.36% as an effective mortgage rate.
Still a bit on the higher side as mortgage rates go, but long-term investors can easily expect to get 5.4% in equities with fairly minimal risk (over say 10-20 years).
But then we have to do the same for taxable brokerage and include \~15% LTCG on liquidation in calculating the returns, so 10% returns are now effectively 8.5%. If the choice was between house payments and 401K/Roth, it would be a bit more favorable to investing routes.
The first response nailed it though - repay faster till you get to at least 20% equity, to remove PMI and for ease of refinancing if rates ever drop again.

This meme makes no sense.
When it came to SALT, Citadel *was* the grim reaper...
And for Melvin, Citadel teamed up with Point 72 to play that role.

OP, what's your long-term capital gains bracket, federal and state?  If you're at 15%, that's a world of difference from, say, 20% plus 3.8% NIIT plus 10+% state plus even more if you're in a phase-out region (e.g., SALT phase-out).  15% might be close to the monthly stock volatility, so silly to avoid when the alternative is putting all your eggs in one basket.  40+% would be another story.

Well in 1981 if you were MFJ your federal tax rate was 59% on a combined income of only $85,600. If you lived in a state/city with a high SALT you easily paid 70% in taxes. A lawyer and a system analyst 10 years into a career could easily make that. So, stop talking out of your ass.

The income that hit the trust is taxed prior to hitting the trust. Yes, the trust can lend money but it's also have to follow the AFR and meet federal lending criteria which sets a date of maturity. If the loans are not pay back accordingly, it become cash distribution. The assets purchased by the trust can be used by its beneficiaries but the trust still pay the sale tax, property tax, and any require SALT that comes with it.