So I have taken on lawn care this year for the first time and I have a lot of weeds in the existing lawn, which I don't really think the previous owner bother to take care of. Location is Northern Virginia.

I have a bunch of Poa Annua, Nimblewill, Crabgrass and some other grass type weed that is growing up quicker than the Kentucky/Fescue mix that I think I have. I also have some general broadleaf/clover in there.

Here's what I have done to date:

One application of Tenacity on the Poa Annua and Nimblewill (Although the Nimbewill is brown still)

Speedzone over the entire lawn to tackle the broadleaf weeds

Reseeded entire lawn about 3 weeks

Patches of my lawn have turned yellow (which I assume is the herbicide working), some white (the Tenacity) and the Poa Annua is still strong.

Anyone help me with my next step?The seeds are just starting to sporadically sprout, but I can only see occasional shoots in some sports. What's my next step? At the moment I was planning to hit another time in a few weeks with Tenacity and Speedzone (once the new grass has grown a little and after I've had a first cut) and then about 6-8 weeks down the line put down some Dimension, with a view to them putting more Dimension in the fall along with another re-seed. I recognize this is a multi year process.

I also have fertilizer (that doesn't contain a Pre-M) for the new grass. Should I put that down now?

I've attached some photos. They are pretty broad pictures, but it gives you a sense of what I'm dealing with (I hope). Can provide more detailed ones if needed.