I help investors analyze, acquire and rehab (established, reliable contractors).

It helps you find reliable property management partnerships and gives you everything you need to make confident hiring decisions, like:Expert Matching: Match with professionals who meet your criteriaExtra Assurance: Licenses, experience, ratings, reviews, and more that can be cross-checked with BiggerPockets membersBonus Content: Receive an essential interactive workbook: “How to Interview Property Management Companies”

It helps you find reliable property management partnerships and gives you everything you need to make confident hiring decisions, like:Expert Matching: Match with professionals who meet your criteriaExtra Assurance: Licenses, experience, ratings, reviews, and more that can be cross-checked with BiggerPockets membersBonus Content: Receive an essential interactive workbook: “How to Interview Property Management Companies”

If the price to replace is within budget I'd do it because you're putting out a newer/safer/more reliable product.2) Cost to replace the entire systems is tough to gauge without knowing the building size and style...

Unlike, an independent GC, who undertakes a broader array of projects, Curbio’s project experience will be more uniform and consistent over time (e.g. focusing on a core set of projects, with similarly attractive traits: impactful; reduced complexity; reliable sourcing; etc.).The “as-is” investor approach that you describe should work, as you would have all of the criteria necessary to be deemed a “qualified-prospect” for Curbio, e.g.: sufficient equity to cover a min $15K budget and ample up-side potential to deliver a sufficient positive ROI.

Build a Strong Team:Surround yourself with a reliable team, including a real estate agent, contractor, property manager, and accountant.

I don't see any reliable apps that focus on handling maintenance requests for small multifamily owners (2-4 units).

I've also never had any problems with Xero, so I'm confident that it's a reliable platform.

Reach out to @Joseph Chiofalo for a wide range of reliable and creative lending scenarios. 

Profits are not always guaranteed, so make sure you build a reliable team of agents, lenders, inspectors, and contractors.