Is it better to put a larger down payment to reduce monthly mortgage cost or to pay principal to reduce the length of the mortgage and time spent paying interest?

I’ve seen both arguments in a google search, so who’s responsible for paying the repairs? 

As I was living out of the country, I set up 'auto-pay' for regular bills, and alerts on bank accounts to keep abreast of any excessive dips in balances or unusual activity in general.

Quote from @Shane Finnegan: In a couple months, I’ll be investing $1.3m - $1.4m into real estate, and I’ll be looking to pay cash and not have any loans.

As I was living out of the country, I set up 'auto-pay' for regular bills, and alerts on bank accounts to keep abreast of any excessive dips in balances or unusual activity in general.

They are also paying all closing costs and real estate fees.     

She's telling me if I file as a REP, I would need to report rental profits/losses on Schedule C instead of the usual Schedule E and pay the the extra self employment taxes. 

.: Don't pay if she requested not to be paid.

Making millions a year and often paying $0 in taxes.Short Term Rentals supercharge this:RE pros use cost segregation and bonus depreciation combined with leverage to create massive losses with minimal cash.Combined with 1031s and snowballing, you create a business that never pays tax.

Understanding how much value the market will pay for the additional sq footage is a key.Cost need to include the time cost of permitting, potential delays etc.