They get a receipt and I can look online to see who has paid.I also like zelle as it is supported by all the major banks and they money is in my account in minutes. 

This was a classic example of supply and demand, when supply outpaces demand prices tend to come down because of the abundance of its availability to consumers. 

I don't want to involve my husband because while he's supportive, this isn't his interest/business pursuit.

Make an offer with numbers you can support.

Put in a new support wall outside, new roof, fixed walk around porch, new HVAC system, 2 new bathrooms done in the historic style in one and not in the other, new water line,  new floors, fixed wall that was fallen 6 inches from second story to foundation, replaced termite damaged foundation beams, paint and cosmetic stuff, all new plumbing, lots more.

Be prepared to pay a big price for an audit on short notice to support the financing of your commercial real estate purchase.

@Curt Treece that only leads to over-leveraging and the income not properly supporting the debt load

** It's worth saying, I strongly believe in and support Fair Housing regulations and what they stand for.

Having said that, I can assure you that maintaining contractor relationships, scheduling the work, overseeing the work - is killer time consuming and is definitely a loss leader for your PM.  

If you ever file a Small Claims Lawsuit, Eviction, or response to a municipal complaint, documentation that is dated/timed is accepted (and expected) to support your position.It's only a waste of time until you need it.