My clients who successfully scale almost always close even when issues pop up during inspections, its the first time buyers or those with under 3 properties who cancel.

I stay away from historical buildings in general for all of the above reasons and more, unless it's a larger scale commercial building with concrete floors and great "bones" that can separate the uses/tenants better.

If you want to scale to bigger assets, then selling some and rolling the money into that asset may make sense.I would talk to @Dave Foster about 1031s, and look over all options.I know that I would refi the equity and buy the next deal.  

I am currently setting up and planning on scaling a property management business focused on serving industrial owners in the London/St.

Set clear goals for what you want to achieve—whether it’s cash flow, building equity, or scaling your portfolio—and make sure each investment moves you closer to those goals.Starting your journey with a solid foundation of knowledge and a network of supportive investors will set you up for success.

Guru #3 is "financially free from W2 job" from doing OOS BRRRRs in less than 3 years, scaled to 21 units in one year and now at 35 units.

I believe that is a great way to scale as an investor.

I actually work with them everyday, and on a broad scale via PM.

I would do an average size home for about $300.If this is for a municipality, it will need to be a to-scale, flat 2D drawing for their filing purposes that includes every room - down to each closet.

More scale=More outsourcing.