Are showings no longer permitted in your state?

State=MACall AND email Mass Congres Reps: https://www.house.gov/representatives#state-massachusettsCall Mass govenors office: https://www.mass.gov/orgs/office-of-the-governorCall Mass state legislators: https://malegislature.gov/Call & email Mayor's office: https://www.framinghamma.gov/235/About-City-GovernmentCall city council: https://www.framinghamma.gov/2432/City-CouncilGo to city council meetings and bring up issues (if these are still being held): 7:15 p.m.The 1st and 3rd Tuesday of each monthMemorial Building150 Concord StreetBlumer RoomFramingham, MA 01702Contact Banks/Card CompaniesEnsure you take advantage of federally backed student loan relief: https://navient.com/covid-19Find out what programs your bank is offering: https://www.bankrate.com/banking/coronavirus-list-of-banks-offering-help-to-customers-financial-hardship/Call credit card companies to try to defer payment: https://www.bankrate.com/finance/credit-cards/issuer-assistance-programs-amid-coronavirus-fears/File for Unemployment - DO THIS IMMEDIATELY IF YOU ARE ELIGIBLE FOR MAX BENEFITSLink to file:https://www.careeronestop.org/LocalHelp/UnemploymentBenefits/find-unemployment-benefits.aspx?

If you can interpret the code that permits more, then that becomes your "Best Case Scenario".

Here’s the update:We are reducing service fees to $999/loan for our Pro customers effective April 1st.We will rebate any fees collected over the past week in excess of that amount back to you as a credit on your next loan.

For an investor, having a project manager/contractor who (1) understands their business goals, (2) can do great, on time, and inexpensive work, (3) can communicate with the city for permits, (4) have a network of reputable roofers, HVAC, electricians, plumbers ... this is an invaluable relationship for an investor, particularly those investing in properties that will need reno work done (flips, or BRRRR deals, etc.). 

Are real estate open houses and showings permitted?

I suspect it will be tough to pull that off without assembling a team custom-built for this specific approach.

If they don't change the fridge's water filter, the worst that will usually happen is they'll probably end up with funny tasting/smelling water.I have another lease that's a custom lease written up by an attorney, and has a clause that specifically addresses HVAC filters:AIR FILTER REPLACEMENT AND/OR MAINTENANCE RESPONSIBILITY [Landlord check this box if applicable]  The premises is supplied with a replaceable air filter as part of the HVAC system.

If they did any additions , were they permitted and these closed?

Complete kitchen remodel, half of the floors redone, custom built bathroom sink vanity for one of the bathrooms.