I started a property management company in 2017 and am now managing almost 800 doors and 6 construction crews.If I could do it all over again, I would have spent a little more time setting up business systems prior to jumping in. 

I own a mortgage company, so I have my loan officers use this Fannie Mae income calculation tool for all business for self borrowers: https://singlefamily.fanniemae.com/applications-technology/income-calculator .

Somewhat unrelated, but I do not allow BiggerPockets to do business with partners who require their clients to sign agreements or otherwise agree to terms that prevent them from leaving what they feel to be honest reviews on BiggerPockets.

Hi @Jinxiang XuFoundation repair is common but no pipeline replacement, it depends on the age of the property, but in your situation it could be due to the foundation work done.Service prices are in all ranges.

It also depends on all the other policies.

I have been in the real estate investment business my entire adult life and struggle to get a MF deal done.

With $50K and a DSCR loan, your budget will likely cap at properties in the $150K-$170K range, depending on the closing costs and any repairs needed.

., the 2006 or 2009 IECC — International Energy Conservation Code).Cost Considerations for a 90-unit or 112-unit Project:The actual cost of qualifying for the 45L tax credit depends on various factors, including:Energy Efficiency Compliance: The primary cost will come from ensuring that each unit meets the required energy efficiency standards, which typically involve energy modeling, certification from third-party energy raters, and potentially upgrading insulation, HVAC systems, windows, and other components of the building to meet the necessary performance levels.Energy Modeling: Typically, you'll need to pay for an energy consultant or engineer to model the building's energy performance and ensure it qualifies for the credit.

Would that lower our tax liability from other income we receive or no because this is purely RE and not an operating business?

Its going to really depend on your location, scope of work, and finishes.