If she's willing, which it sounds like she is, your mother-in=law can get the line of credit with her property in her name and then you can just use the line. 

Start with Reonomy or Costar to identify all the 100+ units in your target market (on and off market) and then see if you can get into direct contact with some owners.

These are the boxes with the deployable wings that can be fixed into drywall, rather than needing to be nailed into a stud.

It take more than 115k for a full gut reno on 1000sqft in philly. lol

Fortunately, those skills can be generalized from one profession to another.4.

Quote from @William Dorrough: I currently either purchase and value add large scale multifamily properties or develop, and build ground up my issue with scaling is we have done this without brining in investors i have a great deal flow with a good track record im really looking to do more i have the capacity but have the need for more capital in one way or another  Scaling without investors can be tough, especially in multifamily.

Costs and Timeline: The process of splitting and developing lots can take time (1.5 years) and may involve significant costs for permits, construction, and other development fees.If you want to learn more about how SB-9 can work for situations like this, check out our website "CityStructure" for more info and helpful resources.

You can use seller financing, or you can use hard or private money.

I would look at the DSCR loan as the first option.By the way, I suspect you are going to be disappointed by any refi appraisals   ADUs typically appraise poorly   JADUs can lower the property value Vs having the space as part of the primary unit.  

I can pay for all my problems using the cash flow from my current rentals.