Do I concentrate on paying it down and increasing my credit score?

My lender says it makes sense to at least refinance even if I wasn’t cashing out to get rid of PMI and have increased tax benefits from the increased interest rate.

But being that it's increased so much it's got us thinking... 

My name is Tony, we were going to work with Fund and Grow, but due to unfortunate events we had to back out and cancel our request for funding and the team at Fund and Grow has been excellent and we look forward in the near future to have a chance to work with Fund and GrowDessert & Thangz LLC

The tenant may withhold the difference between the old rent rate and the new increased rate.

It seems here in the Bay Area, it is starting to soften, DOM increasing, some sellers having to accept lower than listing price.

This change alone stands to gain me ~$150k+ in equity due to the increase in NOI.My concern is that firing this PM may prove complicated due to his status as a tenant.

A part of me would like to bring them up to market rents right away but then I risk the chance of one of them leaving and having to deal with turnover right away.   

Office space and housing  rents are increasing.

The 585,000 number is based on the income-approach used in commercial properties, but it sounds like the appraisal approach would have to be comp-based because it is still a residential property (4 units) at the present time and there is a chance the city won't allow the extra unit.The 461,500 number is the all-in price - purchase+rehab+holding costs.