Call your friendly local appraiser.

., for weekend retreats while also rent it out part time, assuming local laws permit.

Hi Flavia, Research the local market trends, economic indicators, job growth, and development plans in the area to gauge its long-term potential.

There are a few Duluth or Superior based folks active in the forums with varying degrees of regularity.  

Utilities, taxes (property, local vacation, & income), landscaping, furnishing / decorations / amenities, pest control, & supplies (soap, TP, etc) are the big ones on my STR calculator that you didn't mention.I'd also recommend using the enemy method to determine expected income.

I built high-end custom modular (e.g. stick built in a factory and shipped) for a significantly cheaper cost per sq foot than it would have cost to build with a local builder.

Our locals will negotiate on sight distance but there has to be a reason.  

In all cases I will show the benefit of time on local RE investments (even those purchased at full retail).  

If you decide to further pursue this one you need a local structural engineer who can assess the already completed fix.

Partner with a local lender.