That was my business for over thirty years. First I had the business of management and maintenance of all types of RE, then became owner and sales of RE commercial and residential big time at the bottom of the great recession. Had a couple of partners, but went all in and a lot of debt at pennies on the dollar of already half down appraisals. Wasn't long after that year that it started reaping the benefits of that move and even went to lending hard money myself. At the time, my wife was working in the underwriting section of a big bank (which she still works for, but at home since covid) that gave some advantage to the move.
Then the Covid Wars came and I took the signal to get out of most of it. Could of waited another year and got a lot more near the top, but it was time and I was way up in all of my RE investments so another year of risk not knowing where in the heck it was going wasn't appealing. Dealing with the Covid and political Wars and had already lost basically a whole quarter of income, my body getting more tired and older, just took all the fun out of something I enjoyed for so long, so took it as my cue and haven't regretted it. Trading in the market a lot less stress and a lot more fun. Profitable too.