Increase earnings, decrease expenses, save up, and then you can invest. 

However, they require consistent maintenance to avoid becoming a liability.

I recommend you go to the source and educate yourself on all the landlord-tenant laws, particularly in an increasingly regulated state like Colorado.Here's a good starting point: https://doh.colorado.gov/landlord-rights-and-responsibilitie...

Because it will increase the amount of customers you get because you’re expanding to other platforms and which more people are at.

With its robust legal framework, consistent economic performance, and favorable interest rates, Germany stands out as a top investment destination for foreigners.

Quote from @Cameron Moore: Exactly. 15 years ago, I noticed an increase in owners using insurance to pay for a replacement roof, usually to sweeten the pot during a sale.

Its also a great way to increase values in a market since newer homes sales offer higher sale prices.

I'm simplifying but by no means do those riders enhance coverage - they prevent the contract from being voided and add premium to make up for the increased risk.You're an investor with multiple properties so adding this type of rider isn't really what your initial post was about at all, was it?

Another option is to build out a separate entrance to my basement apartment and charge more for rent, and I think it would increase the house's value as a whole.I appreciate your thoughts.

All residential zones now allow multifamily and townhouse residences by-right.Zoning District Consolidation: Former "Residence A-1, A-2, B, and C" districts have been reclassified under "Residence C-1," which permits multifamily housing.Increased Housing Density: The amendment removes minimum lot area requirements, minimum lot area per dwelling unit, and lot width restrictions, allowing for denser residential development.Reduced Yard Setback Requirements: The minimum required setbacks (front, side, and rear yards) for residential properties have been reduced, allowing for more buildable area on lots.Elimination of Parking Requirements: The amendment removes all minimum parking requirements, reducing the obligation for single-family homeowners to provide off-street parking.Subdivision Flexibility: The definition of "subdivided lot" has been updated, making it easier for homeowners to subdivide their land for townhouse or multifamily development.Height and Floor Area Ratio (FAR) Changes: Floor area ratio (FAR) limitations for residential properties have been removed, and height limits have been increased to permit:Up to four stories in Residence C-1 districts.Up to six stories for inclusionary housing projects on larger lots.Anyone who's familiar with Cambridge knows that this is one of the most prestigious, elite, expensive, restrictive areas in the whole state, and for zoning of this magnitude to be passed is truly historic.