Unit sizes, unit rental prices, current occupancy, competition in the area, condition of the buildings, taxes, etc etc etc.. 

A property owner can have an owner occupant property, a second home, and investment home financing and as long as it is up to 4 financed properties, standard Fannie Mae Guidelines apply.Here are the general Fannie Mae Guidelines on Conventional Loans.Minimum credit scores required to qualify for a conventional loan is 620 FICO credit scores.Maximum debt to income ratios to qualify for conventional loans is 45% DTI.Minimum down payment for owner occupied primary residential properties is 3% for first time home buyers and 5% for home buyers.Second home financing require a 10% down payment minimum.Investment home financing require 15% for single family home investment financing and 20% to 30% down payment for multi unit properties.Reserves are required on investment property financing.4 Year Waiting Period to qualify for a conventional loan after a Chapter 7 Bankruptcy discharged date.2 Year Waiting Period to qualify for conventional loan after Chapter 13 Bankruptcy discharged date.4 Year Waiting Period after short sale to qualify for a conventional loan.4 Year Waiting Period after deed in lieu of foreclosure to qualify for conventional loan.7 Year Waiting Period after foreclosure to qualify for a conventional loan.If you have a mortgage part of bankruptcy , the waiting period is four years from the discharged date of the Chapter 7 Bankruptcy and the foreclosure can be recorded at a later date after the Chapter 7 Bankruptcy discharged date.Here are the 2017 Fannie Mae 5-10 Financed Properties Guidelines:A real estate investors cannot own no more than 10 Financed Properties between one to four residential units which includes their primary home, second home, and investment homes.On a property purchase, a 25% down payment on the property purchase will be required for 1-unit property and 30% down payment will be required for 2-4 unitsCash-out refinances are not allowed past 5 properties.

However this can only be enforced where a dwelling has independent means of egress (not shared with other occupants).

FHA for owner occupants is certainly the most popular loan product for small multifamily if you’re looking to preserve cash.

We are currently living in a primary residence that we closed on in May 2022 and moved into June 24th 2022.Our primary home mortgage stipulates under occupancy clause: that we move into the house within 60 days of closing and occupy the residence for at least one year.After that year, we were hoping on purchasing another primary residence closer to myJob (30 miles away).

In the future you may want to consider ensuring all occupants are on the lease.

However, in this case, the upstairs' occupants have created an unhealthy condition that will be ongoing if not remedieda and this requires the HOA to intervene. 

@Cirilo VillarFHA loans, including the FHA 203k, are for qualified non profits or primary residence owner occupant borrowers.Consider the Fannie Mae Homestyle or Freddie Mac CHOICERenovation loan which is the conventional version of the 203k and investors can use it. 

@Svend W. your lease should have clauses that describe what happens when there are unpreventable situations that prevent occupation (like a tree falling on the house, or pipes bursting)--this clause should be designed to limit your liability in such situations. 

I dont think Grant Cardone is right, but I think the trend is towards a rental society and that we should expect that the future will have more renters than owner occupant