Once the issues are solved (i.e. permits are issued, debts are paid off, etc.) the lien goes away.If you do your due diligence, hire a General Inspector and a Roofing Inspector so that they can give you THEIR assessment of what's going on. 

They're definitely expensive... you just have to look and assess what you are using it for, and if you can get returns that will make the rate worth it. 

Based on your assessment of the spread, if it makes sense, then jump in and make an offer but try to push the settlement date back as far as possible to give you enough time to come up with a detailed execution plan for turning the property back into market. 

Once possession is taken, the landlord can follow the statutory provisions regarding making a claim on the deposit, including assessing for damages, accounting for all monies owed and unpaid during the lease, taking move-out pictures, getting needed estimates for repairs, etc.

What other parameters do you use to assess the worthiness of a deal?

I look forward to continuing to learn from the BiggerPockets community as I navigate my real estate investing journey.I’ve had some success on the eastern shore of Maryland, though even that market has started to frankly become expensive, there are still pockets of potential growth both rent & appreciation, thoigh it’s becoming harder to find, also there is a massive rental shortage out there, a county I just put a property contract on, literally has 3 properties for rent right now, but it does make rental comps quite difficult, outside of that I’ve started looking a little more into western Md and some southern pa markets but still trying to get a feel for them, overall I think in this market places that are affordableish and have some draw will do well with the continued wfh + affordability crisis but keep in mind while I think the eastern shore is actually fairly safe market for the most part a lot of rural areas definitely have boom bust potential and in theory more risk than dc metro, though the low price points do by definition tend to mitigate some of those risks. 

My first step would be to go by the tax assessment.

A Comprehensive Guide to Homebuying, it's essential to be thorough and methodical to ensure you're making an informed decision but draw boundaries, it's okay to open built-in closets and kitchen cabinets to assess the property, However, respect the seller's privacy by not invading their personal space, such as medicine cabinets, storage boxes, or clothing drawers,Interior:Architectural style.Bedroom and bathroom count, size, and location.Closet and storage space.Number of floors.Sightlines and general floorplan.Appliance age and condition.Light switches and socket count.Plumbing and water pressure.Natural light and views.Noise levels.Stairway width and type.Porches and decks.Garage and parking capacity.Proximity to neighboring homes.Remodeling opportunities.Exterior:Roof and siding condition.Landscaping and outdoor maintenance needs.Additional Considerations:Take notes and photos during the tour.Use your five senses to assess the home's condition.Ask your real estate agent questions about the home's features, flaws, and market conditions.Red Flags:Overly scented rooms.Water stains and damage.Lack of maintenance.Foundation issues.Sagging ceiling.Fresh paint that may be covering up issues.Final Tips:Be prepared to make multiple offers before finding the right home at the right price.Stick to your budget when making an offer.Don't overlook potential red flags just because you love a home.

If you wants to find a property in Nashville you should define your investment goals, research the market, choose a location, assess your budget and financing options, choose a particular type of property, become acquainted with local regulations, network with professionals, conduct thorough property search and due diligence, think about one’s long-term investment strategy and assess risks and opportunities.You can locate a good home in Nashville by taking these steps and consulting with knowledgeable local consultants.Good luck!

I've been researching and see a few credit unions that do "ADU loans," where they'll assess property value after construction complete, then loan based on that amount.